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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)
Pogostemon deccanensis from Tropica is a unique aquarium plant reminiscent of a mini-conifer . Native to India, this stunning variety develops dense, upright stems topped with fine, whorled foliage. Its moderate growth allows for a compact, structured shape ideal for aquascaping. Perfect for background planting, it can also be used in a central group to create a unique focal point. It appreciates good light, rich soil, and CO2 to reveal its full beauty. Offered here in vitro culture, it guarantees an algae-, snail-, and pest-free introduction to your aquarium. A touch of luminous, sculpted greenery full of character for lovers of planted tanks.

Pogostemon deccanensis is a semi-aquatic plant native to the wetlands of South India. It is found in rice paddies, floodplains and along calm riverbanks. This species is distinguished by its slender stems adorned with fine whorled leaves, which evoke the appearance of a young conifer. This particular shape makes it a plant of choice for structuring the background of an aquarium , or for creating a plant bed in a corner of the tank. It can reach between 15 and 30 cm in height, with a very graphic appearance.
To get the best from this plant, it is important to provide it with a bright environment. Medium to bright lighting (0.5 W/L or more) will allow it to maintain a compact shape and beautiful colors. It tolerates a wide temperature range, between 15 and 30°C, and accepts a pH ranging from 5.5 to 8. Rich soil is highly recommended: whether you use a nutrient substrate or accompany it with root fertilizers, the plant will develop a strong root system. Adding a CO2 system not only accelerates growth, but also strengthens its density and overall appearance.

Pogostemon deccanensis grows at a moderate pace, which limits pruning needs while still allowing good shape control. Regular tip pruning is recommended to encourage the appearance of lateral shoots. This method allows the clump to fill out quickly and maintain a dense shape. Cut stems can be replanted: they root easily and continue to grow without any problems. Its upright structure creates a nice contrast with shorter or more rounded plants, and its light green hue highlights neighboring red plants.
Like all plants from Tropica 's "1-2-Grow!" program, Pogostemon deccanensis is grown in a lab, in a sterile nutrient gel. This ensures a plant free of algae, snails, and diseases . Before planting, simply remove the gel by rinsing the plant under water, then divide the root ball into 5 to 10 portions . Then, place the stems in the soil with pliers, spacing them slightly apart. Thanks to its vertical growth, it is perfect for adding volume without overwhelming the decor. You can also use it in combination with an aquarium root to create a natural and well-balanced scene.
Whether you are a beginner or an experienced grower, Pogostemon deccanensis is a plant that immediately adds character to the tank. Its slender and regular shape allows it to fit into all types of compositions. It is ideal for providing a green background contrasting with creeping mosses or reddish plants. In well-maintained tanks, it can even present shades of green to reddish-brown , depending on the growing conditions. Remember to maintain good water quality, with regular filter cleaning , to avoid the accumulation of waste that hinders its growth. And to encourage recovery, a few bacteria at the introduction will not hurt.
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.
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.
3kg of powder allows the preparation of 42 liters of solution. That's 0€47 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.
Sodium carbonate can be used for solution preparation and implementation of the Balling base carbonate method.
All the products in our range are prepared and packed 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.
Set of 5 labels for marking the containers of your preparations: Calcium, KH, Salt without salt, Magnesium and Carbonate.
Photo: example of set up, cans sold separately.
Denitrol 100ml from JBL is a bacterial activator for introducing fish into freshwater and saltwater aquariums . Thanks to Denitrol, you will get adequate water for your fish and plants . Suitable for freshwater and saltwater aquariums, water turtles and shrimps.
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.
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.