Sea water aquarium

Sera Ammonium-Ammonia Test – Precise monitoring for safe aquarium water Ammonium and ammonia (NH4/NH3) mainly originate from fish waste and can convert into each other depending on the pH value. While ammonium is generally harmless, ammonia is toxic to fish and invertebrates. The Sera NH4/NH3 Test reliably determines the total concentration of both substances to optimize water parameters as needed. Effective analysis to prevent ammonia poisoning Precise measurement to detect critical levels early Included chart allows easy conversion of actual ammonia content based on pH value Easy to use, ideal for regular water checks Actions for elevated ammonia levels In acute cases: Quick neutralization with Sera toxivec (freshwater) or Sera pond toxivec (pond) Long-term solution: Biological support with Sera bio nitrivec (freshwater), Sera marin bio reefclear (marine) or Sera pond bio nitrivec (pond) Technical details Sufficient for approx. 60 tests, ideal for continuous water analysis Enables targeted adjustment of water parameters for stable conditions Suitable for freshwater and marine aquariums as well as ponds With the Sera Ammonium-Ammonia Test, aquarists get a reliable tool for monitoring water quality to protect their fish and invertebrates from harmful pollutants and ensure a stable, healthy aquarium.

Sera Aqua Test Box Marin – Comprehensive Water Analysis for Marine Aquariums The Sera Aqua Test Box Marin offers marine aquarists a complete testing solution to reliably check the most important water parameters. Regular measurements help to detect issues early before they become dangerous for fish, corals, and other marine life. Precise Monitoring of Key Water Values This comprehensive test box enables analysis of: pH value – Regulates water chemistry and promotes stable conditions Carbonate hardness (KH) – Essential for the water's buffering capacity Ammonium/Ammonia (NH4/NH3) – Checks for toxic nitrogen compounds Nitrite (NO2) and Nitrate (NO3) – Indicators of biological load and filter efficiency Phosphate (PO4) – Monitoring to prevent unwanted algae growth Copper (Cu) – Protects fish and invertebrates from toxic levels Calcium (Ca) – Important measurement for coral skeleton formation Advantages for Marine Aquarists Early problem detection to optimize water parameters Easy and precise to use, ideal for regular water checks Ensures stable water conditions and healthy coral growth Technical Details Comprehensive testing solution for marine aquariums Accurate analysis for targeted water maintenance Ideal for beginners and experienced aquarists With the Sera Aqua Test Box Marin, marine aquarists receive an effective tool for water analysis that ensures optimal aquarium conditions and guarantees long-term healthy habitats. Perfect for safe and precise water monitoring.

Sera Calcium Test – Precise measurement of calcium levels in marine aquariums A stable calcium level is essential for the growth and health of corals and invertebrates in marine aquariums. With the Sera Calcium Test, aquarists can quickly and reliably determine calcium levels and optimize the water accordingly. Precise analysis for optimal water parameters Measures up to 7,500 mg of calcium to detect fluctuations early Easy to use, ideal for regular water checks Supports the targeted adjustment of calcium levels for stable reef conditions Adjustment of calcium levels If Ca levels are too low, the addition of Sera marin COMPONENT 1 Ca is recommended If calcium levels are too high, a partial water change can help stabilize them Technical details Accurate test for marine aquariums Allows quick monitoring and adjustment of water parameters Ideal for long-term calcium management With the Sera Calcium Test, marine aquarists get a reliable tool to precisely measure calcium concentration and create optimal conditions for their corals. Perfect for stable and healthy marine aquariums.

Sera Chlorine Test – Precise determination of chlorine levels for fish-safe water The Sera Chlorine Test enables the quick and reliable determination of chlorine levels in aquarium water. Since even low concentrations of chlorine can be harmful to fish and invertebrates, regular monitoring is essential for healthy water quality. Effective analysis for pollutant control Precise measurement of chlorine content to detect critical levels early Ideal for freshwater aquariums and ponds Sufficient for approx. 45 tests, perfect for long-term monitoring Measures for chlorine removal If the chlorine level is too high, the following products offer an effective solution: Sera toxivec or Sera pond toxivec for immediate chlorine removal in freshwater Sera aquatan or Sera KOI PROTECT for water conditioning and creating fish-friendly conditions Technical details Accurate water analysis for pollutant control Quick application for safe water quality Supports long-term care of aquariums and ponds With the Sera Chlorine Test, aquarists have a reliable method for checking water values to ensure a stable and healthy aquarium. Perfect for regular pollutant control testing.

Sera Copper Test – Precise monitoring for safe aquarium water Copper (Cu) is highly toxic to invertebrates such as shrimp and crabs and can also trigger sensitive reactions in fish. The Sera Copper Test allows for the quick and reliable determination of copper levels in aquarium water to avoid risks for aquarium inhabitants. Effective analysis for pollutant control Precise measurement of copper levels to detect critical values early Ideal for freshwater and marine aquariums to ensure optimal water conditions Sufficient for approx. 50 tests, perfect for regular monitoring Causes and solutions for elevated copper levels Medications and algae treatments can increase copper concentrations For elevated values, Sera aquatan offers a quick solution for the removal of copper from aquarium water Technical details Accurate water test for long-term healthy water parameters Supports a safe environment for fish and invertebrates Easy to use for precise results With the Sera Copper Test, aquarists get a reliable tool for monitoring water quality to protect ornamental fish and invertebrates from toxic copper exposure and ensure a stable, healthy aquarium.

Sera Cuvette Replacement Set – Precise measuring cuvettes for accurate water analysis The Sera Cuvette Replacement Set offers high-quality glass cuvettes specially developed for the precise execution of Sera water tests and the exact dosing of care and medicinal products. Thanks to their high-precision scale, they ensure reliable measurement results that meet the standards of a professional-grade measuring cuvette. Versatile applications Ideal for all Sera water tests to determine accurate water values Perfect for precise dosing of aquarium care products and medications High-quality glass material for maximum durability and accuracy Technical details Durable glass cuvettes with a long service life Precise scale for accurate measurements Replacement set for aquarists who value reliable water analysis With the Sera Cuvette Replacement Set, aquarists receive a high-quality and precise solution for accurately measuring water parameters and properly dosing care products – an essential accessory for professional aquarium maintenance.

Sera Iron Test – Precise monitoring for optimal plant nutrition The Sera Iron Test allows for quick and reliable determination of iron content (Fe) in aquarium water. Iron is an essential nutrient for strong plant growth, and a deficiency can lead to pale leaves and growth problems. Effective analysis for healthy aquatic plants Precise measurement of iron content to detect deficiencies early Detection of chelated (stabilized) iron for accurate water value assessment Easy to use, ideal for regular monitoring Targeted fertilization measures In case of iron deficiency, Sera florena or Sera florenette provide immediate nutrient supply Targeted adjustment of water parameters to promote optimal plant growth Technical details Sufficient for approx. 75 tests, perfect for long-term water analysis Enables precise monitoring and targeted optimization of plant nutrients Ideal for freshwater aquariums with demanding aquatic plants With the Sera Iron Test, aquarists have a reliable way to accurately determine the iron level and optimally adjust plant nutrition – for vigorous growth and a healthy, green underwater landscape.

Sera KH Test – Precise control of carbonate hardness for stable water values An optimal carbonate hardness level (KH) is essential for the stability of the pH value and the health of all aquarium inhabitants. The Sera KH Test allows reliable measurement of carbonate hardness to optimize the water and maintain a stable biological balance. Effective analysis for healthy water values Precise measurement up to 390 °dKH to detect critical fluctuations early Easy to use, ideal for regular water quality checks Suitable for freshwater and marine aquariums as well as ponds Measures to adjust carbonate hardness For low KH values, use Sera KH/pH-plus (fresh and marine water) or Sera pond bio balance (pond) For high KH values, filtration with Sera super peat (freshwater aquarium) helps to reduce them effectively Technical details Reliable water analysis for stable environmental conditions Supports long-term monitoring of water chemistry Essential for pH regulation and the health of aquarium life With the Sera KH Test, aquarists get a precise tool to determine carbonate hardness and adjust water quality – for a stable and healthy aquarium environment.

Sera marin salt – High-quality sea salt for reverse osmosis and tap water Sera marin salt is a premium sea salt for marine aquariums, characterized by its excellent homogeneity and consistent granulation. It dissolves quickly and completely, providing crystal-clear seawater with stable water parameters. Perfect mineral composition for optimal water quality The salt has natural GH and KH values and contains a biologically balanced blend of calcium and magnesium, essential for the growth and health of corals and marine inhabitants. Natural buffering system for stable pH value Thanks to specially coordinated buffering systems, the pH value remains precise and reliably in the optimal range, ensuring stress-free conditions for all marine life. Long-term trace element supply Through a specialized manufacturing process, the trace elements remain permanently dissolved, making them available to marine aquariums over a long period and ensuring stable water chemistry. Purity without unwanted substances Free from nitrate, silicate, and phosphate Does not artificially affect skimmer performance, thus preserving natural biological filtration Technical details Ideal for reverse osmosis and tap water Ensures clear water with stable parameters Contains all essential minerals and trace elements With Sera marin salt, marine aquarists receive a high-quality and reliable sea salt that ensures perfect water conditions and optimally supports the natural ecosystem in the aquarium.

Sera marin silicate clear – Effective removal of silicate for clear marine aquariums Silicate can promote unwanted diatom growth in marine aquariums and impair water quality. With Sera marin silicate clear, silicate is easily and permanently bound, keeping the aquarium water clear and maintaining biological balance. Highly effective silicate removal This special product: Reliably binds silicate to reduce algae growth Comes with a practical filter media bag for easy application Has a long-lasting effect of up to three months, depending on the silicate load Easy application for optimal results Rinse briefly under running water before use Place in a filter or in a well-circulated area to ensure maximum effectiveness Technical details 500 g sufficient for aquariums with 200–400 liters of water Long-term effect ensures more stable water values and less algae growth Supplementary silicate control With the Sera SiO3 Test, the silicate level can be reliably determined and monitored to optimally maintain the aquarium. With Sera marin silicate clear, marine aquarists receive an effective solution for silicate control that ensures a healthy, clear, and algae-free aquarium.

Sera Nitrate Test – Precise analysis for optimal water quality An increased nitrate level (NO3) is an indicator of high organic pollution in the aquarium. With the Sera Nitrate Test, aquarists can quickly and reliably determine the nitrate level and take targeted measures to improve water quality. Effective monitoring of nitrate levels Detects nitrate accumulation early, which can lead to algae problems Easy to use, ideal for regular water checks Enables targeted measures to improve water quality Measures to reduce nitrate levels Immediate solution: A partial water change reduces nitrate concentration in the short term Long-term optimization: Filtration with Sera Siporax Professional helps to permanently prevent nitrate buildup Technical details Sufficient for approx. 60 tests Precise and reliable analysis of water parameters Ideal for long-term water quality control in freshwater and marine aquariums With the Sera Nitrate Test, aquarists receive a reliable tool to precisely measure nitrate levels and keep the water sustainably clean and healthy.

Sera Nitrite Test – Reliable monitoring for healthy water values Nitrite (NO2) is among the most dangerous fish toxins in the aquarium and can accumulate in the water with insufficient biological filtration. The Sera Nitrite Test allows the quick and safe determination of nitrite levels to take targeted countermeasures and optimize water quality. Effective analysis to prevent nitrite poisoning Precise measurement to detect critical nitrite levels early Suitable for freshwater and marine aquariums as well as ponds Easy to use, ideal for regular monitoring Measures for elevated nitrite levels Slightly elevated values: Use Sera bio nitrivec (freshwater), Sera marin bio reefclear (marine) or Sera pond bio nitrivec (pond) for biological filtration support High nitrite load: Sera toxivec (freshwater) or Sera pond toxivec (pond) for rapid nitrite neutralization Technical details Sufficient for approx. 75 tests, perfect for long-term water analysis Supports stable water quality and healthy aquarium inhabitants Important monitoring tool for a safe aquarium environment With the Sera Nitrite Test, aquarists get a reliable method to determine nitrite levels and ensure a stable, safe and healthy aquarium. Perfect to prevent nitrite poisoning and long-term water issues.

Sera O2 plus – Fast-acting oxygen supply for healthy aquariums Sera O2 plus offers an effective solution for oxygen deficiency and helps stabilize the biological balance in the aquarium. Thanks to its long-lasting effect, it prevents the formation of putrefactive gases and sustainably supports the self-cleaning capacity of the aquarium system. Optimal oxygen supply for a stable aquarium This special product ensures: Rapid oxygen delivery to prevent dangerous oxygen deficiency Long-term support of water quality by effectively binding putrefactive gases Improved self-cleaning capacity, helping to maintain biological stability Benefits for freshwater and marine aquariums The targeted oxygen enrichment promotes the health of fish, plants, and microorganisms and prevents stress caused by poor water quality. Technical details Fast-acting oxygen supply in acute situations Long-term effect that sustainably stabilizes the aquarium Suitable for freshwater and marine aquariums With Sera O2 plus, aquarists get a high-quality oxygen supply solution that ensures long-term stable water conditions and secures the well-being of aquarium inhabitants.

Sera pH Test – Precise monitoring for stable water parameters A balanced pH level is essential for the health of fish, plants, and microorganisms in the aquarium. The Sera pH Test allows aquarists to reliably determine the pH value and optimize the water to ensure stable conditions. Effective analysis for optimal water quality Precise measurement to detect pH fluctuations early Suitable for freshwater and marine aquariums as well as ponds Easy to use, perfect for regular monitoring Measures for pH adjustment Low pH levels can be corrected with Sera KH/pH-plus (fresh and marine water) or Sera pond bio balance (pond) High pH levels can be regulated with Sera pH-minus or filtration using Sera super peat Technical details Reliable water analysis for stable environmental conditions Enables targeted pH adjustment for healthy aquarium life Ideal for long-term water quality monitoring With the Sera pH Test, aquarists get a reliable tool to precisely measure pH and ensure optimal water conditions – essential for a stable and healthy aquarium environment.

Sera Phosphate Test – Precise control for an algae-free aquarium An elevated phosphate level (PO4) can lead to unwanted algae growth and disrupt the balance in the aquarium. With the Sera Phosphate Test, the phosphate content can be quickly and reliably determined to take targeted measures for water optimization. Effective analysis for stable water quality Precise measurement to detect problematic phosphate levels early Easy to use, ideal for regular checks in freshwater, marine aquariums, and ponds Enables targeted measures to reduce phosphate accumulations Measures to reduce phosphate levels Excess phosphate can be easily removed with the following products: Sera phosvec for freshwater Sera phosvec Granules for freshwater and marine water Sera pond phosvec for ponds Technical details Sufficient for approx. 60 tests, ideal for long-term water analysis Ensures algae-free water conditions and a stable ecosystem Perfect for freshwater and marine aquariums as well as garden ponds With the Sera Phosphate Test, aquarists have a reliable tool to precisely measure phosphate levels and keep the aquarium clean and healthy in the long term. An essential aid to prevent algae problems.

Sera Quick Test – Quick water analysis for optimal aquarium values The Sera Quick Test enables a fast and easy check of the most important water parameters in the aquarium. With just one test strip, you can reliably check pH, carbonate hardness, total hardness, nitrate, and nitrite. Effective routine check for healthy water Easy to use: Dip the test strip into the water for one second Fast results: Compare with the scale on the packaging after 1 minute Ideal for beginners and experienced aquarists Precise diagnosis and optimization Deviations from optimal water values can be precisely determined using Sera drop tests Supports the targeted adjustment of water chemistry for long-term stable conditions Technical details Test strips for analyzing five important water parameters Safe and reliable method for freshwater and marine aquariums Perfect for regular checks to prevent water problems With the Sera Quick Test, aquarists get an effective solution to quickly check their water values and ensure a stable, healthy aquarium.

Sera marin reef salt – High-quality sea salt for healthy coral reefs Sera marin reef salt is a natural high-quality sea salt, specially developed for magnificent reef aquariums. Thanks to its pure individual components, harmful substances are reliably excluded, maintaining biological balance and reducing stress during water changes. Optimal mineral supply for corals and invertebrates This sea salt meets even the highest demands of stony corals and other invertebrates and specifically prevents deficiency symptoms. It contains all essential macro and trace elements necessary for skeletal formation, enzyme production, and color pigmentation in marine organisms. Advantages of Sera marin reef salt 100% pure individual components, free from harmful substances Promotes growth and resilience of corals Optimal water values for a stable ecosystem Reduces stress during water changes through consistently high quality Particularly fine grain for fast solubility Thanks to its fine structure, the salt dissolves easily and quickly, making it immediately ready for use and ensuring consistent water values in the aquarium. With Sera marin reef salt, marine aquarists receive a high-quality, reliable sea salt that optimally replicates the natural environment of a coral reef and ensures long-term health.

Sera aquatan – Effective water treatment for healthy aquarium water Sera aquatan aquarium water treatment instantly transforms tap water into fish-friendly, mineral-rich water by removing harmful substances and adding essential minerals. It ensures optimal living conditions in freshwater and marine aquariums by binding chlorine, chloramines, and heavy metals while supplying valuable trace elements. Pollutant removal for fish-friendly water The product effectively eliminates: Chlorine and chloramines, which are toxic to fish and shrimp Heavy metals such as copper, zinc, and lead Ammonia, which can be deadly even in low concentrations These substances are reliably removed within a maximum of 10 minutes, protecting aquarium inhabitants from poisoning. Minerals for strong and healthy animals Sera aquatan also contains bioavailable minerals that promote the growth and resilience of fish and invertebrates: Calcium – for a strong skeleton and flawless scales Magnesium – supports muscle growth and vitality Manganese – promotes healthy development and fertility Iodine – strengthens the immune system and supports balanced development Application and dosage 5 ml per 20 liters of aquarium water during each water change, initial setup, or in stressful situations Multiple dosing possible if necessary Technical details Fast water treatment within 10 minutes Binds pollutants and supports biological balance Suitable for freshwater and marine aquariums With Sera aquatan aquarium water treatment, aquarists receive a high-quality water care solution that sustainably supports the well-being and health of their fish.  

Sera Crabs Nature Aquarium Crab Food – Natural Nutrition for Healthy Crabs Sera Crabs Nature Aquarium Crab Food is specially designed to optimally nourish freshwater and marine crabs as well as land hermit crabs. Thanks to its quick-sinking and shape-retaining ring form, it allows for easy food intake and supports growth, vitality, and regular molting. Natural Ingredients for Vitality and Color Intensity This high-quality crab food contains a natural blend of nettle, willow bark, and paprika that supports species-appropriate nutrition and brilliant coloration. Free from Artificial Additives As part of the Sera Nature product line, this food contains no preservatives or colorants. The shades of the various food types result solely from the natural nutrient combinations that promote the animals’ health and vitality. Special Ingredients for Optimal Nutrient Supply In addition to classic components such as spirulina, krill, and insect meal from the black soldier fly larva, the food includes a variety of valuable ingredients: Fish meal, wheat flour, and seaweed for balanced nutrition Green-lipped mussel meal and parsley to support digestion Paprika, spinach, and carrots for intense coloration High Nutrient Content for Healthy Development Sera Crabs Nature Aquarium Crab Food offers an optimal composition with: Crude protein: 36.7% for strong growth Crude fat: 11.1% for energy and vitality Important minerals such as calcium (1.9%) and phosphorus (1.0%) to support shell hardening Supplemental Feeding and Usage Instructions Sera Crabs Nature is a species-appropriate complete food and should be fed sparingly once a day. If needed, Sera marin gourmet nori can also be offered. With Sera Crabs Nature Aquarium Crab Food, crab keepers receive a high-quality, natural, and nutrient-rich feeding solution – for strong, vital, and intensely colored animals.

Sera FD Artemia Shrimps Nature – Natural Specialty Food for Healthy Ornamental Fish The Sera FD Artemia Shrimps Nature Aquarium Food is a high-quality single-food made from 100% Artemia shrimp, specially developed for fish and invertebrates in both freshwater and marine aquariums. Thanks to the gentle freeze-drying, all essential nutrients are preserved, optimally supporting growth, color intensity, and immune system strength. High-Quality Ingredients for a Natural Diet With a high protein content (51.1%) and valuable omega fatty acids, this natural food provides: Support for healthy growth and vitality Natural carotenoids to enhance the color brilliance of the fish Essential nutrients to strengthen the immune system Free from Artificial Additives As part of the Sera Nature product line, this food is free from preservatives and colorants. Instead, it contains a finely balanced recipe with natural ingredients that promotes a varied and healthy diet for ornamental fish. Feeding Recommendation Feed several times a week as a snack in small amounts Use sparingly to ensure the fish can consume it all Technical Details 100% Artemia shrimp, rich in natural nutrients Gently freeze-dried to preserve all valuable contents Quality Analysis: Raw Protein: 51.1% Raw Fat: 6.0% Raw Fiber: 3.8% Raw Ash: 17.1% Moisture: 6.9% With Sera FD Artemia Shrimps Nature Aquarium Food, both marine and freshwater aquarium owners receive a high-quality natural product that ensures a healthy and balanced diet for their ornamental fish. Perfect for species-appropriate feeding without artificial additives.

Sera FD Krill Aquarium Food – High-Quality Natural Food for Larger Ornamental Fish The Sera FD Krill Aquarium Food is a 100% natural krill food specifically developed for larger fish and invertebrates in both freshwater and marine aquariums. Thanks to the gentle freeze-drying process, all essential nutrients are preserved to optimally support the vitality, color intensity, and spawning readiness of the animals. Natural Composition for Healthy Aquarium Inhabitants This premium food is based on planktonic marine shrimp from clean, cold waters and is particularly rich in: High-quality protein (71.3%) to support growth and energy supply Natural astaxanthin to intensify color development Essential nutrients to strengthen health and resilience Optimal Feeding for Ornamental Fish As a single food for ornamental fish, it is important to feed sparingly: Feed small amounts several times a week to ensure the animals can consume everything Perfect for larger fish and invertebrates that feed on natural plankton Technical Details 100% Krill, free from artificial additives High protein content (71.3%) for healthy growth Raw fat: 6.3%, raw fiber: 4.2%, raw ash: 12%, moisture: 5.5% Gently freeze-dried to retain all valuable nutrients With Sera FD Krill Aquarium Food, both marine and freshwater aquarium owners receive a high-quality, natural specialty food that sustainably supports the health and vitality of their fish.

Sera marin bio reefclear – Effective water treatment for marine aquariums Sera marin bio reefclear water treatment is a powerful biotechnology product for marine aquariums that uses highly effective cleaning bacteria to specifically break down ammonium and nitrite. This ensures healthy, clear, and biologically active water, optimizing living conditions for fish and corals. High-quality ingredients for effective water purification The product contains mineral volcanic rock, which: Effectively removes pollutants and stabilizes the ecosystem Binds turbidity, ensuring permanently clear water Provides an ideal surface for cleaning bacteria to support biological processes Benefits for the marine aquarium By specifically promoting natural filtration mechanisms, Sera marin bio reefclear improves water quality in the long term and supports the biological balance in the aquarium. Technical details Biological water treatment using cleaning bacteria Effective degradation of ammonium and nitrite High-quality volcanic rock for long-lasting effect With Sera marin bio reefclear water treatment, marine aquarists receive a scientifically based and highly effective solution to sustainably care for their aquarium and create optimal conditions for fish and corals.

Sera marin Coraliquid – Liquid special food for corals and filter-feeding invertebrates Sera marin Coraliquid invertebrate food is a high-quality liquid staple food specially developed for corals and filter-feeding lower animals in marine aquariums. The gently produced suspension of ultra-fine food particles ensures optimal distribution throughout the tank. High-quality ingredients for natural nutrition With a high content of plankton organisms such as spirulina and krill, this special food promotes: Growth and color development of corals and invertebrates Natural feeding behavior that reflects the marine habitat Easily digestible nutrients that support the animals’ vitality Optimal distribution in the aquarium Thanks to its liquid formulation, the food particles remain suspended for a long time and distribute evenly. This ensures that all filter feeders can easily absorb food. Feeding recommendation 1–2 times per week, 5 ml per 200 liters of water Switch off pumps, filters, and skimmers before feeding Switch back on after approx. 15 minutes Composition and analysis This special food contains a carefully balanced blend of natural ingredients: Spirulina, krill, fish meal, seaweed, and green-lipped mussel meal Herbs, alfalfa, nettle, paprika, and spinach 34% omega fatty acids from cod liver oil Technical details Complete food for filter-feeding lower animals Liquid formulation with stable suspension 69% moisture content for optimal intake With Sera marin Coraliquid invertebrate food, marine aquarists receive a high-quality and specially tailored liquid food that offers corals and filter-feeding invertebrates a natural and effective diet.

Sera marin Granulate Nature – High-Quality Soft Granules for Healthy Marine Fish The Sera marin Granulate Nature Aquarium Food is a gently made soft granule specially developed for marine fish in the middle water zone and at the bottom. It contains no colorants or preservatives and supports a natural and species-appropriate diet. Natural Recipe for Optimal Fish Health Thanks to carefully selected ingredients such as iodine-rich seaweed, spirulina, and krill (6%), the granules provide: High acceptance even by demanding fish Promotion of growth, vitality, and color brilliance Strengthening of immune defenses through high-quality nutrients Sustainable Feeding Without Water Contamination The slow-sinking soft granule swells in water without losing its shape. This keeps the aquarium clean and the water quality stable. Natural Ingredients for Healthy Nutrition The Sera marin Granulate Nature belongs to the Sera Nature product line, which uses exclusively natural ingredients such as: Spirulina, krill, seaweed, and green-lipped mussel Nettle, herbs, alfalfa, bell pepper, and spinach Essential omega fatty acids (49% from fish oil) Feeding Recommendation Feed 1-2 times a day sparingly, only as much as the fish can consume in a short period Technical Details and Analysis Raw Protein: 54.8% for optimal growth Raw Fat: 7.8% for healthy energy supply Raw Fiber: 2.9%, Raw Ash: 6.8%, Moisture: 5.0% Vitamins and Additives for a Balanced Diet Vitamin A: 30,000 IU/kg Vitamin D3: 1,500 IU/kg Vitamin E: 60 mg/kg Stabilized Vitamin C: 550 mg/kg With Sera marin Granulate Nature Aquarium Food, marine aquarists receive a high-quality, natural feeding option that promotes healthy development, vibrant colors, and optimal immune defenses.