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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.
PREIS minerals for discus provide all the minerals and trace elements necessary for osmosis water and fresh water for driving, in order to restore the balance and conditions adapted to the particular living conditions of discus fish.
Immersible digital thermometer by Aqua Medic for mounting on the inside wall of the aquarium . Supplied with suction cup and battery…
Very quiet air pump for freshwater and saltwater aquariums from 200 to 600 l, air flow 400 l/h, air pressure >160 mbar for only 5.5 W consumption.
JBL Floaty II M enables easy and effective cleaning of aquarium panes up to max. 10 mm thick: cleaning magnet with floating inner element.
Scalare 1-3mm black gravel is a fine black sand for freshwater use .
Air pump of 400 l/h with 2 outlets . Extremely quiet operation. Ready to use, delivered with a 2 meter hose and 2 diffusers .
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.
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)