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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.
What they think about it
(and they are right...)
Alexandre B.
Very satisfied, I recommend (Translated review)