Clear Sight Effectively eliminates mineral cloudiness Reduces the primary algae nutrient, phosphate Ensures your aquarium water remains crystal clear and clean for an extended period Minerals and decomposed organic matter (detritus) can lead to frustrating cloudiness in your aquarium water. This cloudiness can also elevate phosphate levels, promoting algae proliferation. sera phosvec･clear quickly binds the cloudiness, making it easier for the filter to collect. Simultaneously, it removes excess phosphates, helping to prevent unwanted algae growth. Enjoy long-lasting clarity and cleanliness in your aquarium water. For usage instructions, visit this link.

Breathe easily with our purifying solution. Emergency assistance during sudden oxygen shortages. Stress relief through enhanced oxygen availability. Simple and safe to use. Aids in the breakdown of sludge. The respiration of aquarium residents, along with other natural decomposition processes, continuously consumes oxygen. Various factors can trigger sudden shortages, such as elevated water temperatures, significant organic waste, and oxygen-depleting disease treatments. Even minor oxygen deficits can cause stress, while severe shortages can lead to the demise of fish. Sera O2 plus—just sprinkle it into the water—instantly increases oxygen levels, improving the living environment for all aquatic life. Furthermore, efficient oxygen levels accelerate decomposition processes, keeping your aquarium crystal clear and free from unpleasant odors.

Soft water - but safely The pH and KH will decrease. Adjusts the carbonate hardness. Regulates the pH level. Creates soft and slightly acidic water suitable for various species. Certain fish species, such as discus and angelfish, thrive in very soft water, which is especially crucial for their breeding. Additionally, when breeding other fish types, the water may exhibit elevated carbonate hardness (KH) or the pH level might increase excessively due to natural metabolic processes. In these situations, sera pH/KH-minus provides a reliable and swift solution. The pH and KH levels decrease immediately and are effectively regulated. This establishes suitable conditions for rearing that enhance the vitality and overall well-being of the fish. Tip: Adjust the KH with sera pH/KH-minus to 4°dkH and then add sera super peat to the filter to maintain appropriate tropical soft water conditions for an extended period.

Premium liquid filter medium Effectively breaks down leftover food, ammonium, and nitrite through biological processes. Offers a settling area for beneficial purification bacteria, fostering a living environment that is biologically active. In aquarium water, hazardous substances like ammonium and nitrite are constantly generated. With sera bio nitrivec, a product of sera biotechnology, you'll find millions of purification bacteria that help establish a stable biological balance quickly and reliably, ensuring that these toxic substances are continuously broken down. The added mineral volcanic rock efficiently removes pollutants, binds cloudiness, and provides an ideal settling area for the purification bacteria. This results in healthy, clear, and biologically active water. When used alongside sera aquatan, you can introduce fish just 24 hours after application! sufficient for 50 ml: 125 Liter / 33 US gal. sufficient for 100 ml: 250 Liter / 66 US gal. sufficient for 250 ml: 625 Liter / 165 US gal. sufficient for 500 ml: 1.250 Liter / 330 US gal. sufficient for 2.500 ml: 6.250 Liter / 1,650 US gal. sufficient for 5.000 ml: 12.500 Liter / 3,300 US gal.

Bacteria and enzymes are ready to spring into action. Fish waste, leftover food, and decaying plants can quickly accumulate into a sludge layer at the bottom of your aquarium. The carefully formulated combination of purification bacteria and biologically active enzymes in sera filter biostart effectively breaks down this sludge and initiates the further decomposition of pollutants in the filter. Sera filter biostart is the perfect companion for sera bio nitrivec, which begins its process immediately after sera filter biostart. Together, these two products work to ensure your aquarium water remains clear and healthy. With its high-performance filtration capabilities, sera siporax Professional creates optimal conditions for the effectiveness of sera filter biostart and sera bio nitrivec.

Stability and Certainty It provides a buffer and maintains the pH level. It also works against biogenic scaling and creates optimal conditions for specific species (such as African Cichlids). Carbonate hardness (KH) is among the less critical factors of aquarium water. Most freshwater fish thrive in water that is somewhat harder. Moreover, KH serves as a buffer that helps to avoid hazardous fluctuations in pH values, including sudden increases in acidity. For all community aquariums, it is advisable to maintain a minimum KH of 6°dkH, with even higher levels recommended for specific cases like African Cichlids. This ensures the health of the fish while keeping the aquarium water resilient and easy to care for. Sera KH/pH-plus effectively raises KH to the desired level in a precise and long-lasting manner. The pH level will rise gradually and, most importantly, it will be securely stabilized.

Stability and Assurance It provides a buffer and maintains the pH level. It also combats biogenic scaling and fosters ideal conditions for specific species (such as African Cichlids). Carbonate hardness (KH) is among the less critical parameters of aquarium water. The majority of fish in freshwater tanks tend to thrive in relatively hard water. Moreover, KH serves as a stabilizing buffer that prevents harmful swings in pH levels (including sudden increases in acidity). For community aquariums, it is advisable to keep a minimum KH of 6°dkH (even higher for specific species like African Cichlids). This helps ensure the health of the fish, while also making the aquarium water resilient and easy to manage. Sera KH/pH-plus will accurately and consistently raise KH to the desired level. The pH will gradually increase and, most importantly, will be safely stabilized.

Facilitates the tracking of pH levels in both freshwater and marine environments, including ponds. Suitable for approximately 100 tests. If pH levels are found to be too low, we suggest using sera KH/pH-plus for freshwater aquariums or sera pond bio balance for pond applications. Conversely, if pH levels are too high in freshwater aquariums, we recommend either sera pH/KH-minus or filtering with sera super peat. For detailed usage instructions, please visit this link.

Marine salt for R/O and tap water Thanks to its outstanding homogeneity and uniform grain size, sera marin salt dissolves effortlessly and leaves no residue, creating crystal clear marine water. It maintains natural GH and KH levels while supplying ample calcium and magnesium in biologically appropriate proportions. The pH level is kept consistently within the ideal range due to the natural buffering system present in sera marin salt. Through a unique process, this salt retains trace elements in a manner that keeps them dissolved and available for an extended period. sera marin salt is free from any substances that could artificially boost protein skimmer performance. It is also devoid of nitrates, silicates, and phosphates. Sera (sea salt free of nitrates, phosphates, and silicates) provides calcium along with all the essential trace elements required for successfully cultivating ornamental algae and lower resins in saltwater. Additionally, it includes a blend of special substances that aid in the removal of harmful elements such as heavy metals and copper. It dissolves swiftly and without leaving deposits. With its natural buffering system, it guarantees a stable pH value. Instructions for use: Dissolve Sera marin salt (approximately 33 g per liter of water) to achieve a water density between 1.022 and 1.024 g/ml in treated water (osmosis) or chlorine-free tap water, aerate for 24 hours, or mix thoroughly with a submersible pump to enhance oxygen and carbon dioxide levels. Warning: Do not dissolve sea salt directly in an active aquarium! We suggest changing 5-10% of the aquarium water monthly, and using sera aquatan and sera bio reef clear for improved water quality. When establishing a new aquarium, treat the water with Sera aquatan and Sera bio reef clear, and allow the aquarium with all connected equipment (pumps, heaters, filter...) to operate for at least 14 days to achieve biological stabilization before introducing fish.

Introducing the highest quality premium marine salt designed to mimic natural conditions, the new sera marin reef salt is perfect for creating stunning reef environments. This exceptional blend is crafted from individual components, ensuring that pollutants are entirely eliminated. Its consistently high quality helps to minimize stress during water changes. Even the needs of the most discerning invertebrates, like stony corals, are met with this product. It effectively prevents deficiencies, as sera marin reef salt contains all essential macro and trace elements vital for marine organisms. These elements play crucial roles in the skeletal development of invertebrates as well as in the synthesis of enzymes and color pigments. Thanks to its fine grain size and the use of pure single components, this marine salt dissolves easily and rapidly, making it a convenient choice for all your reef needs.

Sera Plant Color T8 Fluorescent Aquarium Lamp 15 Watt is a fluorescent light designed to support the growth of plants in both freshwater aquariums and reptile terrariums. This lamp creates an ideal environment, enhances the colors of fish and plants, and boosts photosynthesis by emitting blue and red light at a power of 4900 kelvin. Features: 15 watts 45 cm in length 2.6 cm in diameter 4900 kelvin

Sera Plant Color T8 Fluorescent Aquarium Lamp - 18 Watt This lamp emits a red-blue hue, promoting ideal plant growth in both aquariums and terrariums with a temperature of 4900 Kelvin. It highlights the vibrant colors of your fish and plants, adding an exotic touch to your aquarium environment. Additionally, it boosts photosynthesis to support robust plant development. Length: 60 cm

Greenhouse Daylight Brilliant is a versatile daylight lamp that emits a wide spectrum of bright light, perfect for freshwater aquariums, mimicking the natural conditions of streams and shallow lakes. Power: 15 watts Length: 45 cm Diameter: 2.6 cm Color Temperature: 6000 kelvin

Sera Lamp T8 BRILLIANT DAYLIGHT, 36 W, 120 cm features a neutral hue. This fluorescent bulb boasts a color temperature of 6000 Kelvin. It provides daylight that mimics the lighting found in tropical streams and shallow lakes. Offering exceptionally bright illumination, it is ideal for freshwater aquariums housing diverse communities. Its neutral spectrum ensures that natural colors remain unaltered. For optimal results in freshwater tanks, it is advisable to pair this lamp with sera plant color.

12,000 Kelvin - A strikingly bright blue light - Mimics the lighting conditions found in tropical rivers and lakes. Thanks to its well-balanced spectrum, sera Blue sky can function effectively as a standalone tube or in conjunction with sera Deep sea, serving as a light source for marine aquariums. Pairing it with SERA Tropic Sun yields the best results for freshwater aquariums. Quality aquarium lighting is essential not only for fish but also for any live plants thriving in your aquarium. Plants require light for photosynthesis to create food from carbon dioxide and water. For instance, tropical plants typically need around 12 hours of light daily, while aquatic plants from cooler waters may need light that shifts with the seasons. IMPORTANT: The lifespan of the aquarium lamps is 12 months. The lamp's spectrum gradually shifts over time, and after this duration, it can no longer serve as an effective aquarium lamp for its intended purpose. For optimal performance, replace your aquarium lights every 12 months. In essence, watts indicate the amount of energy a light uses, lumens measure its brightness, and Kelvins define the color of the light.