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Aquarium and pond equipment at the best prices!
For those passionate about aquariophily
Having trouble finalizing your order? Contact us 24 hours a day by email at information@zoanthus.fr.
Basin Analysis
5€ discount for your first order with the code: BIENVENUE05 (from 100€ purchase, offers cannot be combined)
Balling Products
Seawater supplements
Basic elements
Fresh Water Supplements
CO2 system
5€ discount for your first order with the code: BIENVENUE05 (from 100€ purchase, offers cannot be combined)
Water treatment
Bacterial Treatments
Adverse Treatments
Fish Care
Water treatment
Bacterial Treatments
Adverse Treatments
Fish Care
Water treatment
Bacterial Treatments
Fish Care
5€ discount for your first order with the code: BIENVENUE05 (from 100€ purchase, offers cannot be combined)
5€ discount for your first order with the code: BIENVENUE05 (from 100€ purchase, offers cannot be combined)
Sand
Substrate for reactor
Sea Salts
Pond Substrate
5€ discount for your first order with the code: BIENVENUE05 (from 100€ purchase, offers cannot be combined)
Seawater Equipment
Basin Equipment
5€ discount for your first order with the code: BIENVENUE05 (from 100€ purchase, offers cannot be combined)
Cladophora linnaei , also known as Moss Ball or Cladophora ball, is a plant curiosity from the most peaceful lakes in the world. This ultra-decorative spherical algae , sold in blister packs of 3 "in vitro" balls, adapts to all aquariums, even the smallest. It seduces with its perfect shape and minimal maintenance . In addition to its unique charm, it offers an ideal refuge for shrimp and helps maintain cleaner water . Easy to maintain, it can also be attached to an aquarium root or a rock to create an ultra-trendy plant carpet.

Contrary to what one might think, Cladophora linnaei is not a plant but rather a filamentous green algae . Its perfectly spherical shape is shaped by the natural movements of water in the cold lakes of Europe, Asia and Japan. In an aquarium, it maintains this shape if you remember to turn it regularly. Easy to live with, it grows very slowly and does not require a CO2 system or powerful lighting . It can even survive in a simple glass jar.
It thrives in water between 5 and 27°C, with a pH of 6 to 8.5, and adapts to a wide variety of water hardnesses. Very resistant , it even tolerates brackish water. For those who wish to vary the aesthetic, it is possible to divide it into several pieces: it will form new balls or transform into a plant carpet if it is fixed to a support. An original option for creating aquascaping compositions.
In addition to its decorative aspect, Cladophora is appreciated for its qualities as a "natural filter" . It captures suspended particles and absorbs some of the nitrates present in the water. Although it is not a miracle cure for nitrates, its simple presence reduces the proliferation of other algae thanks to nutrient competition . A good complement to nutrients and the classic filter .
It's also a prime habitat for microorganisms and a perfect hiding place for shrimp and small fish. Invertebrates love to rummage through it in search of food. Some aquarists even use it in breeding tanks as a medium for live food .

The moss ball lives for a long time, up to 10 years or more. Its maintenance is simple: simply rinse it gently every 15 days in clean water from the tank. Squeeze it gently to remove impurities, reform it into a ball, and replace it. If it turns brown, white, or deteriorates, don't panic: a simple cleaning, rolling, or placing it in the shade is often enough to restore it to its original shape.
Be careful not to exceed 24°C: the balls risk deteriorating. In hot weather, you can even place them briefly in the refrigerator (without freezing them). Avoid anti-algae products, which will definitely destroy them.
Aegagropila linnaei is a fascinating species, both for its history and its form. Protected in several countries, including Japan, Iceland, and Russia, it has become a cultural symbol. In Japan, it is even celebrated annually during a traditional festival. This rarity means it is sometimes counterfeited in the form of plastic balls: it is better to choose in vitro , laboratory-grown specimens, such as those offered by Zoanthus.
Finally, contrary to popular belief, this algae is not invasive. Its ultra-slow growth makes cases of uncontrolled proliferation very rare in aquariums. If this were to occur, simply remove the young shoots. Fear of algae is often unjustified: a good filter cleaning and a good light/temperature balance are enough to avoid any problems.
Nitrax M is a filter foam for Juwel Bioflow 3.0 filter. It provides a biological filter medium intended to break down the nitrates present in your aquarium. It inhibits the growth of algae and stimulates the vitality of your plants and fish.
Pronovo Tab M 250 ml from JBL are food tablets for all aquarium fish from 1 to 20 cm. Suitable for bottom fish and all other fish when the tablet is glued to the glass.
KORALLEN-ZUCHT cyano clean is a special strain of bacteria that competes with cyanobacteria .
Prime Reef Flakes is a complete flake food rich in vitamins and proteins for marine and freshwater fish.
Second element of the Balling method, sodium hydrogen carbonate allows the maintenance of the carbon hardness (Kh) of seawater in the application of the Balling method.
1kg of powder allows the preparation of 12 liters of solution. That's 0€41 per litre!
High purity chemical products compliant with the European Pharmacopoeia prepared and packaged on site in our warehouse.
Products are now packaged in resealable pouches for less breakage during transport. They are also more ecological with 80% less plastic compared to our old packaging.
Filtration sock for filtration resins and activated carbon.
Anti-corrosion steel adjustment valve. 2 output.
First element of the Balling method, calcium chloride allows the maintenance of the level of calcium ( Ca ) of the sea water in the application of the Balling method.
1kg of powder allows the preparation of 14 liters of solution. That's 0€57 per litre!
High purity chemical products compliant with the European Pharmacopoeia prepared and packaged on site in our warehouse.
Products are now packaged in resealable pouches for less breakage during transport. They are also more ecological with 80% less plastic compared to our old packaging.
Utricularia graminifolia from Tropica is a bit of a UFO among aquarium plants. With its miniature grass look and surprising carnivorous properties, this in vitro plant is a sensation in the foreground. It forms a pretty, dense, light green carpet , all in finesse, which dresses the aquarium floor with a stunning naturalness. In addition to its ultra decorative appearance, it feeds on microorganisms thanks to its small invisible skins , a real plus in well-balanced tanks. It loves light, thrives in soft water and prefers a dry planting to root well. With a good CO2 system and a little patience, it becomes the number one visual asset of your aquascape.
Tropica 's Rotala wallichii is an exceptional stem plant for enthusiasts who love challenges... and rewards. With its finely cut foliage and spectacular pinkish-red color in good lighting, it transforms an aquarium background into a living tableau. It grows up to 30 cm tall and offers a magnificent contrast with surrounding green plants. Very decorative when planted in groups, it requires strong lighting and a well-established CO2 system . Soft, slightly acidic water and good nutrients are also essential to reveal its full potential. A true star for well-maintained tanks.
Blyxa japonica from Tropica is a unique aquarium plant. With its leaves shaped like soft strands that undulate in the current, it immediately gives a natural and lively look to the decor. Its dense habit and its olive green color that can turn red under strong light make it an ideal choice for the middle or background of the tank. Cultivated in vitro, it arrives without algae, snails, or pesticides , and integrates easily into aquascapes of all sizes, even nano. Moderately demanding, it appreciates intense lighting , a good substrate, and a CO2 system if possible. A plant that is both graphic and functional, perfect for adding movement and texture.
Rotala rotundifolia 'Blood Red' is undoubtedly one of the most spectacular plants for adding color to an aquarium. A native of Asia, this variety boasts a deep, vibrant red color that creates a striking contrast alongside light green plants. Easy to maintain, it thrives even in moderate light and nutrient conditions, although strong lighting and an optimized CO2 system are recommended to reveal its full potential. It grows tall, with gently arching stems that form a dense, bushy structure. Easily trimmed, it can be used to create colorful, dynamic, and modern displays in any type of tank.
What they think about it
(and they are right...)
CORINNE A.
Received not implemented (Translated review)
Sandra C.
Very good. (Translated review)