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)
Decorative, robust and easy to plant , the Hygrophila corymbosa 'Siamensis 53B' in a mini pot is perfect for creating a dense and natural plant background . With its finely textured leaves with sometimes coppery reflections under good lighting , it transforms the bottom of the tank into a real small aquatic garden. Thanks to its moderate growth and its very simple needs, it adapts easily to low-tech aquariums, even without CO2 injection. Sold in a mini coconut pot, it is ready to plant effortlessly. It is a perfect choice for those who want a plant that is both aesthetic, practical, and requires little maintenance.

Hygrophila corymbosa 'Siamensis 53B' stands out for its ability to quickly form a beautiful, compact bush, perfect for the background of the tank. This variety from Thailand is appreciated for its natural bushy shape and numerous lateral shoots. In an aquarium, it can reach up to 40 cm in height and approximately 12 cm in width, which allows it to elegantly hide technical equipment or structure the plant decor.
Its light green leaves are slightly smaller than those of the classic 'Siamensis' version. Under the right lighting, they take on a stunning coppery sheen, adding a highly desirable visual effect. This warm hue makes it even more attractive in natural or Asian-style aquariums.
The mini pot format is a real plus: the plant arrives with its roots already well developed in a coconut fiber support. No need to remove anything, just plant it directly in the ground . In addition to being quick, this method is gentle on the plant, which adapts more easily to its new environment. It anchors quickly and begins to grow without difficulty.
It appreciates a nutritious substrate to express its full potential, but it also grows very well in simpler soils, as long as a minimum of nutrients are available. Its tolerance to different water parameters makes it a safe bet for all types of aquariums.
If you're looking for an easy-to-grow plant, you'll love the 53B. It thrives in water temperatures between 18 and 30°C , with a pH between 5.5 and 8, and a wide range of hardness. Even in moderate light, it thrives and looks great. No need for sophisticated equipment or complicated maintenance.
Its average growth allows it to be pruned as needed, which stimulates the appearance of new side shoots . To propagate it, nothing could be simpler: cut off the ends and replant them. It takes cuttings very well and therefore allows you to quickly expand your bed.

In addition to being easy to maintain, this Hygrophila is also perfectly suited to creating a natural atmosphere . It combines wonderfully well with aquarium roots or aquarium sand for a natural and harmonious look. Its dense shape also makes it easy to hide technical elements such as the filter .
Even in a low-tech tank, it perfectly fulfills its decorative role. Thanks to its easy maintenance and its very plant-like appearance, it fits equally well in nano-aquariums as in larger tanks. A true little plant gem to adopt without hesitation.
Blue Exit is the new product to eliminate blue algae (or cyanobacteria) without using antibiotics or compounds containing copper.
Wadding cushions (x4) and a pre-cut replacement blue foam for the EHEIM professional 4+ and 5e ( 2274 )
KORALLEN-ZUCHT cyano clean is a special strain of bacteria that competes with cyanobacteria .
The third element of the Balling method, this "salt-free salt" is a mixture of all the mineral salts present in natural seawater , except sodium chloride NaCl. It allows the maintenance of the ionic balance in the application of the Balling method.
1kg of powder allows the preparation of 41 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.
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.
Pack of trace elements to be diluted directly in Balling preparations, at a rate of 25ml each for 5 liters of preparation.
See product descriptions for more details.
Calcium hydroxide Ca(OH)2 can be used for the preparation of lime water. This saturated solution of calcium hydroxide helps provide calcium and maintain the alkalinity of your aquarium.
pure >98.0%, Ph Eur, USP, FCC, E 526e
JBL FilterStart 10ml is the little miracle bottle to give your filter a real boost, whether after cleaning or when starting a new aquarium. This liquid concentrate provides millions of live, autotrophic and hyperactive bacteria that will quickly settle in and start cleaning your water. The result? A healthy aquarium, clear water, and healthy fish. Thanks to its 8 complementary bacteria cultures , JBL FilterStart effectively eliminates ammonium, ammonia, nitrites and even organic waste. It is essential to ensure a quick and controlled start of biological filtration, in freshwater as well as saltwater.
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.
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.
Hottonia palustris , or Marsh Hottonia, is an aquarium plant with light and very graphic foliage . Native to Europe and Asia, it is perfect for creating a soft transition between low and tall plants. With its bright light green stems and finely cut leaves, it immediately brings a natural and airy effect to the decor. Undemanding, it grows slowly but surely, and its maintenance remains easy even for beginners. It can reach up to 30 cm in height and is ideally placed in the middle or background zone in nano tanks. It grows well without CO2, although a small contribution can boost its density. A beautiful plant, discreet but full of charm.
What they think about it
(and they are right...)
Florimond B.
In perfect health (Translated review)
Edith L.
Impeccable plants. They are already starting to grow (Translated review)
José C.
Well-preserved plants in their packaging (Translated review)