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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)
Ceratophyllum demersum , also known as foxtail, is an extremely resilient floating plant that adapts to almost any tank. With no roots, it naturally attaches itself to the decor or floats freely, while absorbing excess nutrients directly through its leaves . Its dense, intense green foliage provides a superb refuge for fry and excellent anti-algae support. Its rapid growth and ease of maintenance make it a perfect ally, whether you are a beginner or an experienced enthusiast. It grows without worry in a wide range of parameters and its firm texture makes it less brittle than other varieties . Perfect for large volumes as well as for small natural tanks.

Native to Bolivia, Ceratophyllum demersum was discovered during an expedition to the Rio Guaporé. Since then, this cosmopolitan plant has become a staple in aquariums around the world. It is easily recognizable by its long, rigid stems, which can reach up to 80 cm in length , adorned with deep green, needle-like leaves , which form a very decorative ensemble.
Sold in portions, this "Foxtail" variety is known for its compact shape, strength, and "foxtail" aesthetic. Unlike other aquatic plants, it does not have true roots, but can still be placed in open water, in the ground, or between decorations as an aquarium root . It adapts to all environments and will thrive in both an aquarium and an outdoor pond.

Ceratophyllum demersum is a fast-growing plant. In addition to being beautiful, it's also useful. It naturally absorbs nitrates from the water, thus limiting the growth of algae. It's a simple, natural, and economical solution for maintaining a healthy tank. As a bonus, it releases substances that inhibit algae growth, a phenomenon known as allelopathy.
It thrives particularly well in still water, close to the surface where the light is more intense. Medium lighting is sufficient for it to thrive. It can also benefit from the addition of a little CO2 system or liquid nutrients to boost its growth and coloration, but this is not essential.
Whether you have a community aquarium, a shrimp tank, or even a nano tank, Ceratophyllum demersum will easily find its place. Highly valued for its natural filtering qualities, it is also a perfect shelter for small fish and fry , thanks to its very dense branches. Its foliage is rough, which makes it resistant to nibbling and difficult to tear or damage.
Easy to propagate, you can propagate it quickly by cutting sections of stem and replacing them in the aquarium. It is ideal for background and background areas, where it forms attractive aquatic shrubs, but can also float freely on the surface. Be careful to control its growth, however, as it can become invasive under the right conditions.
Since it has no roots, there's no need to plant it in rich aquarium rock or sand: it draws everything it needs directly from the water. To maintain its effectiveness, remember to clean the filter regularly to prevent it from suffocating under accumulated waste.
Easy-Life 25 Root Sticks are ideal for feeding plants directly at the root . The product contains 25 special clay sticks which are very nutritious and have a high iron content.
Immersible digital thermometer by Aqua Medic for mounting on the inside wall of the aquarium . Supplied with suction cup and battery…
JBL Floaty II M enables easy and effective cleaning of aquarium panes up to max. 10 mm thick: cleaning magnet with floating inner element.
External filter with two filtration stages for aquariums up to 300 liters . Maximum flow of 1000l/hour. Very silent. Comes complete with filtration media and ready to use.
Scalare 1-3mm black gravel is a fine black sand for freshwater use .
EHEIM AKTIV is particularly suitable for water purification during the setting up phase of the aquarium . In particular, chlorine from mains water and other chemicals, which may enter the aquarium during installation, are safely absorbed. Suitable for fresh and marine water.
EasyCarbo is a very powerful and effective carbon nutrient solution for aquarium plants . Provides essential carbon for good plant growth.
Aquamaker is a powerful, fast-acting water conditioner . It makes aggressive tap water ready for use in all freshwater and saltwater aquariums.
Hygrophila pinnatifida is a unique aquatic plant distinguished by its copper, green, and burgundy foliage. Perfect for decorating the background of an aquarium, it clings naturally to roots and rocks, creating a natural and lush setting. With moderate growth , it remains compact if regularly pruned and provided with good lighting . It is ideal for aquarists of all levels, from beginners to experts wishing to perfect an elegant and refined aquatic landscape.
Rotala indica 'Bonsai' is an elegant and compact aquatic plant, perfect for adding volume and depth to an aquarium. With its small, rounded leaves and moderate growth, it is reminiscent of a miniature Bacopa caroliniana . Placed in groups and pruned regularly, it forms a dense and harmonious bush. Under intense light , its tips take on a reddish tint, providing a beautiful variation of color. This easy-to-maintain plant is ideal for the second or background of an aquarium and adapts equally well to classic aquariums and sophisticated aquascapes.
Helanthium tenellum 'Green' is a grassy plant ideal for creating a natural, dense carpet in a freshwater aquarium. Unlike the classic variety, this 'Green' version retains a vibrant green hue, even under strong lighting . It forms a compact and attractive plant carpet thanks to its numerous branches. Easy to maintain, it does not require complex care and grows slowly, thus limiting the need for pruning. For optimal development, a CO2 system and nutrient- rich soil are recommended. Whether for a nano aquarium or a large tank, this plant elegantly enhances the foreground.
The in vitro Rotala rotundifolia 'H'ra' brightens up any aquarium with its fine, elegant leaves that change from soft green to a vibrant orange under optimal lighting . This stem plant grows quickly and forms a charming little bush that perfectly adorns the bottom of the tank. Easy to maintain, it adapts equally well to conventional aquariums and demanding aquascapes. With regular maintenance and proper pruning, it offers a striking decorative effect. Its ability to change its color depending on the maintenance conditions makes it an ideal choice for bringing dynamism and originality to the aquatic environment.
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...)
Alexandre B.
Very satisfied, I recommend (Translated review)