API® pH DOWN pH adjuster effectively reduces pH levels to create a more acidic environment in freshwater aquariums, benefiting both fish and plants when pH rises too high. The pH scale measures how acidic or alkaline water is, where 7.0 indicates a neutral pH, values above 7.0 are alkaline, and those below 7.0 are acidic. Since various fish species require specific pH levels to thrive, it's essential to regularly test your water to ensure pH remains within the appropriate range. The pH DOWN pH adjuster works quickly, is clear, simple to apply, and will not make your aquarium water cloudy. Additionally, as it contains no phosphates or nitrates, it will not promote algae growth. Use an API pH TEST KIT to check the pH of your aquarium water. To decrease the pH, add 1 ml for every 10 gallons of water in your aquarium. Before applying another dose of pH DOWN pH adjuster, take another pH measurement. Be aware that some fish may react sensitively to pH adjustments exceeding 0.2 within a 24-hour timeframe, so it's important to make such changes with caution.Expires on 28 Apr 2029

API® MARINE STRESS ZYME bacterial cleaner is packed with millions of live bacteria that break down sludge and organic waste, thereby minimizing the upkeep of your aquarium by keeping live rock, coral, sand, gravel, and aquarium glass spotless. This product can be applied weekly to lessen aquarium maintenance and support a robust biological filter. Incorporating API MARINE STRESS ZYME bacterial cleaner into your regular aquarium routine guarantees an active biological filter, a tidier aquarium, healthier fish, and improved water quality. Apply 5 ml. for every 10 gallons of water on a weekly basis.Expires on 28 Apr 2029

AQUA ESSENTIAL water conditioner is an incredibly concentrated all-in-one solution that quickly transforms tap water into a safe environment for your fish by eliminating chlorine, chloramine, and neutralizing heavy metals that are often present in tap water. This water conditioner effectively removes harmful levels of ammonia, nitrate, and nitrite in freshwater, saltwater, and planted aquariums. Ammonia, which is continuously released by fish through their gills, urine, and waste, can also accumulate from uneaten food and decomposing organic matter. While even small amounts of ammonia can stress fish, larger quantities can be lethal. This specialized formula binds to ammonia, nitrite, and nitrate, making them non-toxic and allowing your biofilter to work more efficiently in eliminating them. Apply this conditioner at the start-up of your aquarium and each time you add or change water, or when tests indicate elevated levels of ammonia, nitrates, or nitrites. When introducing, transporting, or quarantining fish, we suggest using API STRESS COAT water conditioner, which pairs perfectly with AQUA ESSENTIAL water conditioner. Using the dosing cap provided, add 5 ml for every 50 gallons of aquarium water to treat tap water. For removing ammonia, nitrite, and nitrate, use 5 ml for every 10 gallons of aquarium water. We recommend waiting 24 hours after dosing before performing a water change. If you need to dose again within that 24-hour window, it poses no risk to the animals or plants in your aquarium. A subsequent water change is always advantageous for aquatic health.Expires on 30 Dec 2027

API® AMMO LOCK ammonia detoxifier is scientifically formulated to safeguard fish from toxic ammonia by transforming harmful ammonia into a harmless state. This detoxifier acts immediately in both freshwater and saltwater tanks, alleviating fish stress linked to high ammonia levels and supporting optimal gill function. Please be aware that if your aquarium shows ammonia presence, it's essential to conduct a partial water change before neutralizing the ammonia. Use 5 ml. for every 10 gallons of aquarium water. Administer every two days until ammonia levels are undetectable. Expires on 28 Feb 2030

API® ACCU-CLEAR water clarifier swiftly clears up cloudy aquarium water, removing haze to ensure your water is sparkling clean. The API ACCU-CLEAR water clarifier causes tiny floating particles to cluster together, creating larger particles that can be easily filtered out by your aquarium's filtration system. This product is safe for use with all freshwater fish and aquatic plants. Apply 1 ml. for every 10 gallons of aquarium water. Your water will start to clear up within a few hours. If a second application is required, please wait 24 hours. Expires on 28 Apr 2030

AQUA ESSENTIAL water conditioner is a powerful all-in-one solution that quickly transforms tap water into a safe environment for your fish by eliminating chlorine, chloramine, and detoxifying heavy metals typically found in tap water. This conditioner effectively removes harmful ammonia, nitrate, and nitrite levels in both freshwater and saltwater aquariums, as well as planted tanks. Ammonia is constantly produced by fish through their gills, urine, and waste, while leftover food and rotting organic matter contribute to ammonia levels. Even small amounts of ammonia can stress fish, and high levels can be lethal. This specialized formula binds with ammonia, nitrite, and nitrate, making them non-toxic and enabling your biofilter to work more efficiently in their removal. Apply the conditioner when setting up your aquarium and whenever you are adding or changing water, or if you discover elevated levels of ammonia, nitrates, or nitrites. For situations involving the addition, transportation, or quarantine of fish, we suggest using API STRESS COAT water conditioner, which works perfectly alongside AQUA ESSENTIAL water conditioner. Using the dosing cap provided, add 5 ml per 50 gallons of aquarium water to treat tap water. To effectively eliminate ammonia, nitrite, and nitrate, add 5 ml per 10 gallons of aquarium water. We recommend waiting 24 hours after dosing before performing a water change. Dosing again within that 24-hour period poses no risk to the animals or plants in your aquarium. A subsequent water change is always advantageous for the health of your aquatic system.Expires on 28 Apr 2027

API® AMMO LOCK ammonia detoxifier is scientifically formulated to safeguard fish from harmful ammonia by transforming toxic ammonia into a safe, non-toxic substance. This detoxifier acts immediately in both freshwater and saltwater aquariums, alleviating fish stress related to high ammonia levels and supporting healthy gill function. Please note that if ammonia is detected in your aquarium, it is essential to carry out a partial water change before neutralizing the ammonia. Use 5 ml for every 10 gallons of aquarium water. Repeat every two days until ammonia levels are undetectable. Expires on 28 Mar 2029

API® AMMO LOCK ammonia detoxifier is scientifically formulated to shield fish from harmful ammonia by transforming toxic ammonia into a safe, non-toxic substance. This detoxifier acts quickly in both freshwater and saltwater aquariums, alleviating the stress on fish caused by high ammonia levels and supporting optimal gill function. Please note that if your aquarium shows ammonia presence, it's essential to conduct a partial water change initially, followed by the neutralization of the ammonia. Use 5 ml. for every 10 gallons of aquarium water. Reapply every two days until ammonia is no longer detectable. Expires on 28 Jun 2029

Shrimp food enriched with spirulina and alder cones sera Shrimps Nature is a primary food source featuring gently processed granules free from artificial colors and preservatives, suitable for all types of shrimps in both freshwater and marine environments. This well-balanced formula includes natural ingredients like spirulina and alder cones, ensuring that shrimps receive all the essential nutrients they need for robust growth and successful molting. It effectively promotes fertility, enhances vibrant coloration, and boosts disease resistance. The small sinking granules maintain their shape for an extended period, allowing shrimps to feed naturally by picking at them and grazing without causing water pollution. Complete nutrition for all shrimps Ingredients fish meal, wheat flour, wheat germ, brewers yeast, spirulina (5%), Ca-caseinate, sea algae, gammarus, stinging nettle, willow bark, alder cones, fish oil (containing 49% omega fatty acids), mannan oligosaccharides, herbs, alfalfa, parsley, paprika, green-lipped mussel, spinach, carrots, Haematococcus algae, garlic. Additives Vitamins and provitamins: Vit. A 37,000 IU/kg, Vit. D3 1,800 IU/kg, Vit. E (D, L-α-tocopheryl acetate) 120 mg/kg, Vit. B1 35 mg/kg, Vit. B2 90 mg/kg, stable Vit. C (L-ascorbyl monophosphate) 550 mg/kg. Analytical Constituents Crude Protein 40.5%, Crude Fat 7.7%, Crude Fiber 6.0%, Moisture 5.0%, Crude Ash 10.5%, Ca 2.5%, P 1.0%. Additional Product Information Natural diet for ornamental fish This product is part of the "sera Nature" line, which is free from dyes and preservatives. A varied diet rich in natural ingredients is the best safeguard against nutritional deficiencies and supports the overall health and vitality of your fish. The Nature food varieties contain wholesome components such as Spirulina, Krill, or responsibly sourced insect meal from soldier fly larvae (Hermetia). The package features icons indicating these ingredients and their proportions in the food. Feeding instructions Feed sparingly once each day. Note: Avoid removing leftover granules too quickly, as they retain their shape for a considerable time and shrimps take their time grazing.

Stability and Assurance Establishes a buffer to maintain the pH level Helps prevent biogenic scaling Fosters optimal conditions for specific species (such as African Cichlids) Carbonate hardness (KH) is among the less critical factors in aquarium water quality. The majority of freshwater fish thrive in water that is relatively harder. Moreover, KH serves as a buffer, safeguarding against harmful pH fluctuations (including sudden increases in acidity). For all community aquariums, it's advisable to maintain a minimum KH of 6°dkH (which should be even higher for specific cases like African Cichlids). This ensures the fish's health and keeps the aquarium water robust and manageable. Sera KH/pH-plus will accurately and sustainably raise KH to the desired level. The pH will increase gradually and, most importantly, it will be securely stabilized.

Biological filter media designed for phosphate elimination Sera siporax algovec Professional serves as a biological filter medium that effectively eliminates phosphate through the action of beneficial bacteria. An excess of phosphate can promote unwanted algae growth. The bacteria utilize nutrients in a stable and enduring form, beginning their activity shortly after they come into contact with water. They reproduce and remain functional for an extended period. The carrier material of sera siporax enhances bacterial performance by providing optimal conditions for settlement, thanks to its nature-inspired surface structure. Using sera siporax algovec Professional as a preventive measure will help to avoid phosphate accumulation.

Emergency Care for Aquariums Quickly eliminates harmful ammonia and nitrite Neutralizes heavy metals including lead and copper Effective in removing chlorine and chloramines Reduces nitrate levels, consequently decreasing algae growth Due to various destabilizing factors such as overfeeding, high fish populations, new aquarium setups, extensive maintenance efforts, or the use of treatments, spikes in harmful pollutants like ammonia and nitrite can unexpectedly arise in aquarium water. In these urgent scenarios, sera toxivec promptly eradicates these toxic elements along with other hazardous substances like chlorine and heavy metals. The natural balance swiftly restores itself after the pollutants are eliminated, eliminating the need for frequent, stressful water changes.  

Natural Tropical Black Water Maintains a slightly acidic pH level over an extended period Gently lowers water hardness Provides a steady release of humic and fulvic acids Natural chelation helps to bind harmful heavy metals Offers protection against mold and pathogens affecting roe Supports the protective layer of skin mucus Naturally inhibits algae growth with a light filter The subtle amber hue promotes stress reduction Black water creates a species-friendly environment for tropical aquariums The natural habitat for fish like discus, angelfish, or neons is typically defined by very soft, slightly acidic, and often dark water. These tropical black water conditions can be easily and sustainably achieved using sera super peat. This functional granulate, derived from natural black peat and placed in the filter, effectively lowers KH over time and stabilizes the pH in the slightly acidic range. Moreover, it continuously releases beneficial humic and fulvic acids.

Gentle water - but with safety in mind Reduces pH and KH Modifies carbonate hardness Controls the pH level Creates suitable soft and mildly acidic water Certain fish species, such as discus and angelfish, thrive in very soft water and specifically need these conditions for successful breeding. However, the water might have excessively high carbonate hardness (KH), or the pH could have increased significantly due to natural metabolic activities, even when keeping other types of fish. In such situations, sera pH/KH-minus offers dependable and swift assistance. It instantly and accurately lowers and regulates both the pH and KH levels. This establishes optimal keeping conditions that greatly enhance the health and well-being of your fish. Tip: Set the KH to 4°dKH using sera pH/KH-minus and then add sera super peat in the filter to consistently maintain tropical softwater conditions.

Safe Soft Water Solutions The pH and KH will decrease Modifies the carbonate hardness Controls the pH level Creates ideal soft and slightly acidic water for aquatic species Certain fish species, such as discus and angelfish, thrive in very soft water and require these conditions particularly during breeding. Additionally, when breeding other fish varieties, the water may exhibit high carbonate hardness (KH) or the pH level might elevate excessively due to natural metabolic processes. In such situations, sera pH/KH-minus provides a reliable and swift solution. The pH level and KH decrease instantly and are effectively controlled. This establishes the right environment for breeding, enhancing the vitality and overall health of the fish. Tip: Adjust the KH to 4°dkH using sera pH/KH-minus, and then add sera super peat to the filter to sustain the ideal tropical soft water conditions over an extended period.  

Stability and Assurance It establishes a buffer and maintains the pH level It helps combat biogenic scaling Creates optimal conditions for specific species (e.g. African Cichlids) Carbonate hardness (KH) is among the less critical factors of aquarium water quality. The majority of fish in freshwater aquariums prefer somewhat harder water. Furthermore, KH serves as a buffer that shields against harmful pH fluctuations (including sudden increases in acidity). For all community aquariums, it's essential to maintain a minimum KH of 6°dkH (even higher for particular species like African Cichlids). This helps ensure the health of the fish and keeps the aquarium water stable and manageable. Sera KH/pH-plus effectively raises KH to the desired level over the long term. The pH will gradually increase and, most importantly, remain securely stabilized.

Emergency Care for Aquariums Instantly eliminates harmful ammonia and nitrite Neutralizes heavy metals like lead and copper Eradicates chlorine and chloramines Reduces nitrate levels, thereby minimizing algae growth Due to various destabilizing factors, such as overfeeding, high fish populations, new aquarium setups, increased maintenance demands, or the use of treatments, sudden spikes in pollution from harmful substances like ammonia and nitrite can occur in aquarium water. In these critical moments, sera toxivec swiftly eliminates these toxic agents as well as other hazardous substances, including chlorine and heavy metals. The natural balance is rapidly restored after the pollutants are removed, eliminating the need for stress-inducing, extensive water changes.  

Essential food featuring soft granules for marine fish sera marine Granules Nature is a fundamental food option made of meticulously crafted granules that are free from artificial colors and preservatives, suitable for all marine fish that feed in the mid-water and bottom layers. Thanks to the thoughtfully chosen, natural ingredients like iodine-rich marine algae, spirulina, and krill, this food is highly favored even by the most selective fish, fulfilling their natural dietary needs. It promotes healthy growth, stunning appearance, and boosts disease resistance. The gently sinking soft granules quickly soften while retaining their shape and do not contribute to water pollution. Complete nutrition for all marine fish Ingredients Fish Meal, Wheat Gluten, Wheat Flour, Wheat Germ Meal, Calcium caseinate, krill (6%), fish oil (containing 49% omega fatty acids), Algae, brown (kelp), Dehydrated brewer's yeast, mannan oligosaccharides, spirulina, green-lipped mussel, stinging nettle, herbs, Alfalfa herb, parsley, paprika, spinach, Haematococcus algae, carrots, garlic. Additives Vitamins and provitamins: Vit. A 13,600 IU/lb, Vit. D3 680 IU/lb, Vit. E (D, L-α-tocopheryl acetate) 27 IU/lb, Vit. B1 14 mg/lb, Vit. B2 41 mg/lb, Stabilized Vit. C (L-ascorbyl monophosphate) 250 mg/lb. Analytical Constituents Min. Crude Protein 52.8%, Min. Crude Fat 6.8%, Max. Crude Fiber 4.6%, Max. Moisture 6.0%, Max. Crude Ash 7.8%. Product More Details Natural diet for ornamental fish This product is part of the "sera Nature" range, which does not utilize any artificial colors or preservatives. A diverse diet with natural ingredients is the best safeguard against nutritional deficiencies and promotes the well-being and vitality of the fish. The Nature food types include wholesome components such as Spirulina, Krill, or sustainable insect meal from soldier fly larvae (Hermetia). The symbols displayed on the front of the package emphasize these ingredients and their proportions in the food. Feeding instructions Feed once or twice a day, providing only as much as the fish can consume in a short time.

Replacement Component Versatile valve designed for Sera external filter Replacement part for Sera fil bioactive 130 external filter Replacement part for Sera fil bioactive 130 + UV external filter