Circular floor cleaner for expansive spaces effectively eliminates sludge buildup in gravel thoroughly and dependably perfect for cleaning extensive gravel surfaces compatible with all gravel types can also be utilized in sand at a lower flow rate includes a 2 m long, clear hose for immediate use Excess sludge in the aquarium is not only unattractive, but it can also compromise water quality. The larger the gravel, the more sludge accumulates in the crevices. Food often sinks to the bottom before it can be consumed, and waste from animals and decaying plant matter tends to gather, potentially bypassing the filter. The Gravel Cleaner Round enables you to efficiently and gently clean larger areas, ensuring that beneficial bacteria remain in and on the substrate. Even particularly fine gravel and sand can be effortlessly disturbed and cleaned using a reduced flow rate, which effectively prevents substrate compaction. cleaning and maintenance solutions for your aquarium The sera cleaning product line features an array of items designed to simplify tasks in and around your aquarium. You'll find window cleaners available in various sizes and styles for both small and large tanks, suitable for cleaning both inside and out. Additionally, aquarists can discover brushes for every purpose, such as cleaning hoses, technical apparatus, or decorations. The sera substrate cleaners come in multiple variations, each expertly tailored to specific cleaning needs. The collection is further enhanced by practical tools like water suction aids or towels.

Compact floor cleaner designed for hard-to-access spots effectively eliminates sludge buildup in gravel with thoroughness and dependability perfect for maintaining small aquariums and hard-to-reach spots compatible with all varieties of gravel also suitable for sand, thanks to the flexibly adjustable bypass opening comes with a 2 m long, clear hose for instant use Excess sludge in your aquarium can be both unattractive and detrimental to water quality. The larger the gravel, the more sludge accumulates in the crevices. Food can sink to the bottom before it is consumed, and waste from pets or decaying plant matter can gather without reaching the filter. The Gravel Cleaner Nano is designed to delicately clean small and challenging areas, ensuring that enough beneficial bacteria thrive within and on the substrate. It can also easily loosen and clean very fine gravel and sand, thanks to the bypass opening. This effectively prevents the substrate from becoming compacted. cleaning and maintenance solutions for your aquarium The sera cleaning range features a selection of products that simplify maintenance in and around your aquarium. You'll find window cleaners available in various sizes and styles for both small and large tanks; suitable for both interior and exterior cleaning. Additionally, aquarists can discover brushes for every need, whether for cleaning hoses, equipment, or decorations. The sera substrate cleaners come in multiple versions, each expertly designed for specific applications. The collection is rounded out with handy tools like water suction aids and towels.

sera Glass Cleaner Effective limescale remover for all glass surfaces efficiently eliminates limescale deposits on glass panes and items with ease and reliability safe for all aquatic life including fish and invertebrates simple dosing and accurate application using the spray nozzle biodegradable thanks to its unique formulation and free from dyes, preservatives, and fragrances ideal for use on acrylic glass Limescale edges or stains are a frequent problem. Limescale buildup can often be found around the waterline inside the tank as well as on its exterior, and can be tough to eliminate without proper cleaning agents. This can occur on glass surfaces, but also on the hood, base cabinet, or filter. The Glass Cleaner provides an easy and effective method for removing limescale deposits and is safe for all aquarium inhabitants. Its straightforward dosing and accurate spray application enhance user convenience. Additionally, it is biodegradable, devoid of colorants, preservatives, and fragrances, making it suitable for aquariums and items made from acrylic glass. cleaning and care products for your aquarium The sera cleaning collection features a wide range of products designed to simplify tasks in and around the aquarium. You'll find window cleaners in various sizes and styles, suitable for both small and large tanks; effective for cleaning both inside and out. Moreover, aquarists can discover brushes tailored for every cleaning need, including those for hoses, technical equipment, or decorative pieces. The sera substrate cleaners are available in several types, perfectly suited for their intended application. This range also includes helpful tools like the water suction aid and absorbent towels.

Nourishing and immune-boosting food for Koi, designed for feeding throughout the year floating pellets featuring a unique ring and core structure enriched with probiotic active bacteria to enhance and stabilize intestinal flora promotes health and optimizes feed utilization Koi develop robust health, build a strong immune system, and contribute to cleaner water high in protein for optimal growth Probiotics are now recognized beyond yogurts or dietary supplements for humans—they have become an essential part of ornamental fish nutrition. Since 2016, the intestinal flora stabilizer Bacillus velezensis (previously known as B. subtilis) has been approved for inclusion in ornamental fish feed, receiving explicit endorsement from the EFSA (European Food Safety Authority) to enhance growth and feed efficiency. sera was the pioneer to respond swiftly in 2016 by introducing an innovative probiotic koi food: “Koi All Seasons Probiotic.” As part of the brand's rebranding initiative, the name was updated to “Koi Professional Probiotic.” Koi Professional Probiotic is ideal for year-round feeding of koi when water temperatures exceed 8 °C. The specially co-extruded granules include not only the natural, functional components that are typical of sera, such as MOS, beta-glucans, Haematococcus algae, spirulina, and more, but also the probiotic Bacillus velezensis, which supports the fish's intestinal flora. This enhances their overall health and boosts feed efficiency. As a result, koi grow rapidly and uniformly, while the water remains less polluted by harmful waste and algae-promoting substances. To reap these benefits throughout the year, this specialized food should replace seasonal diets several times a week, as long as water temperatures are above 8 °C. It also serves excellently as a primary food source. Koi Professional line Within the Koi Professional line, sera provides high-quality food options tailored to the unique needs of cold-blooded fish during various seasons (spring & fall, summer, winter). Additionally, there are two functional food options, Koi Professional Color and Probiotic, which are suitable for year-round feeding. Koi Professional Junior has been specifically formulated to cater to the dietary requirements of young Koi. Ingredients Fish meal, corn starch, wheat flour, wheat gluten, fish oil (4%), krill oil (3%), spirulina, brewer's yeast, wheat germ, Ca-caseinate, mannan oligosaccharides (0.4%), krill meal, gammarus meal, green-lipped mussel meat meal, nettle, alfalfa, Haematococcus algae, parsley, seaweed meal, peppers, spinach, carrots, garlic, fenugreek seeds, fennel seeds, aniseed. Nutritional Analysis Crude protein 40.0%, crude fat 8.5%, crude fiber 2.0%, moisture 6.0%, crude ash 7.5%. Additives Vitamins and provitamins: 3a672a/vit. A 37,000 IU/kg, 3a671/vit. D 3 1,800 IU/kg, 3a700/vit. E 120 mg/kg, 3a820/vit. B 1 35 mg/kg, 3a825i/vit. B 2 90 mg/kg, 3a312/stab. Vitamin C 550 mg/kg. Intestinal flora stabilizer: 1x10 10  CFU/kg 4b1820 Bacillus velezensis DSM 15544. Recommended For Complete diet for all Koi

Ceramic filter tubes designed for aquarium filtration systems Ensures clean and clear water: ceramic filter tubes intended for aquarium filters A biological pre-filter medium that prevents excessive silting Made from pure ceramic material. Ring dimensions: 17.4 mm length, 17.4 mm outer diameter, 7.75 mm inner diameter, 4.7 g Compatible with both freshwater and saltwater environments Package includes: 700 g of ceramic filter tubes with a net bag for easy filling REPLACEMENT FORJB6237500 JBL Cermec Expires on 05 Jun 2026

Aquarium Decor - Transform your fish tank with a natural aesthetic and fresh perspective. Introduce an element of excitement to your aquarium with the Karis Twin Castle Aqua Decoration, designed to mimic a shipwreck. This distinctive decorative item serves as a stunning centerpiece, reminiscent of hidden treasures in an enchanting aquatic realm. Made from premium materials, the detailed craftsmanship and aged textures not only elevate the visual charm but also offer crucial hiding spaces for your fish. Dimensions: 35x11x17cm

Aquarium Decor - The fish tank adds a natural flair and a fresh perspective. Enhance your aquarium's look with the Karis Tiny Weed Aqua Decoration. This delightful decorative item showcases lifelike, delicate weeds that elevate the natural charm of your underwater habitat. Made from premium materials, the detailed design and vivid colors offer crucial hiding places for fish while fostering a rich and welcoming aquatic scenery. Size: 17x8x9cm 2pcs / Box

Aquarium Decor -  Transform your fish tank with a natural flair and a refreshing perspective. Elevate your underwater scenery with the Karis Turf Aqua Decoration. This decorative item boasts a rich, grassy texture that resembles a turf-like surface, enhancing the organic appearance of your aquarium. Crafted from resilient materials, this decoration promises a safe and enduring enhancement to your tank. Its user-friendly installation makes it ideal for aquascaping, enriching the visual appeal while creating cozy areas for your fish to discover and relax in. Dimensions: 16x11x9cm

Revitalize your aquarium with the Karis Classical Aqua Decoration, crafted to replicate the stunning allure of driftwood. Constructed from premium, long-lasting materials, this decorative item mirrors timeless architectural styles, presenting a grand and lifelike appearance that will enchant both your fish and viewers. Ideal for aquascapes with a historical or classic motif, it not only offers a lovely refuge for aquatic creatures but also elevates the visual appeal of your tank. Dimensions: 19.5x11x14.5cm

Aquarium Decor - Transform your fish tank with a touch of nature and a fresh perspective. Design a magical underwater realm with the Karis Castle Aqua Decoration. This beautifully crafted decorative piece adds a captivating, medieval flair to your aquarium. Constructed from premium materials, the castle not only serves as a stunning focal point but also provides a cozy hiding spot for your fish, enhancing the depth and aesthetic appeal of your aquascape while offering a practical refuge. Sizes: M - 23x23x17cm; also available in S - 29x8x20cm

Aquarium Decor - Enhance your fish tank with a natural aesthetic and fresh perspective. Add a fun twist to your aquarium with the Karis Stone Aqua Decoration, crafted to mimic delightful creatures. This distinctive decorative item introduces character and charm to your underwater habitat, serving as an impressive centerpiece. Constructed from premium materials, the detailed craftsmanship and realistic stone finish elevate the visual charm while offering vital hiding places for your fish. Dimensions: 15x8x14cm

Advanced LED lighting that features both blue and white light, equipped with a microprocessor system to adjust intensity, ideal for both freshwater and marine aquariums.Expires on 05 Jun 2026

An ideal blend of silent functionality, compact design, exceptional performance, premium materials, and cost-effectiveness. This product offers the best performance-to-size ratio available. Features a magnetic mount and allows for 360-degree flow adjustment. The pure ceramic bearings significantly reduce noise and enhance durability. Equipped with a pre-lubricated, self-cleaning impeller and silicone cord protection. It operates at 5.5W, delivering up to 5000 liters per hour. Perfectly suited for marine tanks of up to 350 liters and freshwater tanks of up to 500 liters.Expires on 05 Jun 2026

A robust natural stone featuring numerous pores, cavities, and channels. Zeolith operates through an adsorptive process, meaning it effectively draws in and holds environmental toxins and decayed substances within its cavity system thanks to powerful electrostatic fields. Zeolith promotes the growth of beneficial bacteria and functions as both an ion-exchanger and a catalytic converter. For ease of use, it is advisable to place the filter material inside a Net Filter Bag.Expires on 05 Jun 2026

An ideal blend of silent functioning, compact design, outstanding efficiency, premium materials, and economical energy use. Offers the best performance-to-size ratio available. Features a magnetic mount for easy placement. Enjoy 360 degrees of adjustable flow. The pure ceramic bearings reduce noise and enhance durability. Equipped with a pre-lubricated, self-cleaning impeller and silicone cord protection. Consumes just 13W to deliver an impressive 8000 liters per hour. Perfectly suited for marine tanks up to 550 liters or freshwater tanks up to 900 liters.Expires on 05 Jun 2026