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)
Narrow spectrum water conditioner to remove ammonia quickly and safely in the aquarium. AmGuard does not work by lowering pH or forming a temporary ionic complex. On the contrary, it forms an irreversible component without modifying the pH and promotes the proliferation of nitrifying bacteria. It is a remarkably flexible product and suitable for emergency situations, the installation of new aquariums or the arrival of new fish. Compatible with Prime or Salfe. Usable in seawater and freshwater. Dosage 5 ml for 200 liters of water. Ammonia tests are available in our shop.
Accurately tests the ammonia level of your seawater.
Allows you to take around 50 measurements.
Instructions in French
Accurately tests the nitrite level of your seawater.
Allows you to take around 60 measurements.
Instructions in French
This SALIFERT brand analysis kit allows you to test the pH of your seawater accurately, on a scale of 7.4 to 8.6. Allows you to take around 50 measurements.
Accurately tests the nitrate level of your seawater.
Allows you to take around 60 measurements.
Instructions in French
PRODIBIO BioDigest 12 ampoules is a concentrated bacterial solution designed to help aquariums regain efficient biological filtration and visibly healthier water. Suitable for both freshwater and saltwater aquariums , this treatment utilizes several strains of live bacteria that work together to support the tank's natural cycle. It contributes to the digestion of organic waste, the reduction of undesirable compounds, and improved overall environmental stability. Highly useful for setting up a new aquarium, after an imbalance, or for regular maintenance, BioDigest helps limit nitrites, reduce nitrates and phosphates , and curb the proliferation of filamentous algae for a cleaner, more stable, and more pleasant aquarium to maintain.


Zoanthus Lab Calcium 1000 ml is a concentrated solution designed to precisely correct calcium deficiencies in marine aquariums. A central element in reef balance, calcium (Ca) is essential for the growth of hard corals, giant clams, calcareous algae, and many other reef-building organisms. Formulated with purified water and pharmaceutical-grade calcium chloride dihydrate , this supplement offers a clear, stable, and perfectly measurable concentration. Free from unnecessary additives and complexing agents, it integrates seamlessly into a rigorous management system based on ICP analysis. A reliable, transparent solution designed for discerning aquarists.


KH + Zoanthus Lab 1000 ml is a concentrated solution designed to precisely correct alkalinity in marine aquariums. KH is a fundamental parameter for reef balance, directly linked to pH stability and the proper functioning of calcification processes in hard corals, calcareous algae, and other reef-building organisms. Formulated with purified water , pharmaceutical-grade sodium carbonate , and pharmaceutical-grade sodium bicarbonate , this product guarantees a clear, stable, and perfectly measurable solution. Free of unnecessary additives, it is ideally suited for rigorous management based on ICP analysis. A reliable, transparent solution designed for discerning aquarists.
Zoanthus activated carbon allows the absorption and fixation of harmful elements present in the water of your aquarium . This activated carbon in cylindrical form, offers a very high filtration surface and quickly and reliably eliminates all harmful substances present in the water of your aquarium. It brings healthy and crystal clear water .
Seachem DeNitrate 1L effectively removes nitrates, nitrites and ammonia from your aquarium water.
Seachem DeNitrate 500ml effectively removes nitrates, nitrites and ammonia from your aquarium water.
Seachem DeNitrate 1L effectively removes nitrates, nitrites and ammonia from your aquarium water.
PRODIBIO Stop Ammo 6 ampoules is a natural solution designed to trap ammonia and help limit nitrite formation in both freshwater and saltwater aquariums. Formulated with specially selected plant extracts, this product acts as immediate protection during critical phases of aquarium life: start-up, accidental spikes, acclimation, or transport. It helps reduce fish stress , protect their gills, and stabilize the water when the biological system is going through a sensitive period. Highly useful in cases of cloudy water, sudden ammonia spikes, or after an incident in the tank, Stop Ammo provides a quick, clean, and easy-to-use solution for restoring safer conditions.
PRODIBIO Stop Ammo 30 ampoules is a natural solution designed to trap ammonia and help limit nitrite production in both freshwater and saltwater aquariums. Formulated with carefully selected plant extracts, this product acts quickly during critical periods in the aquarium: start-up, acclimation, transport, or accidental spikes. It helps protect fish gills , reduce stress, and stabilize the water when the biological balance is fragile. Its convenient 30-ampoule format makes it ideal for aquarists who want to keep a reliable solution on hand for large tanks, regular use, or aquarium emergencies.
PRODIBIO Start Up 12 ampoules is a complete kit designed to accelerate the start-up of an aquarium while minimizing the risks associated with ammonia. Suitable for both freshwater and saltwater aquariums, it combines BioDigest Start, which provides selected live bacteria to quickly initiate the nitrogen cycle, and Stop Ammo Start, formulated to trap the nitrogen contained in ammonia and transform it into harmless compounds. This dual action allows for a more stable biological filtration system to be established from the very first hours , with a smoother and more efficient start-up. The 12-ampoule format is ideal for medium to large aquariums, or for those who want a convenient kit for a complete tank renovation.
PRODIBIO Start Up 6 ampoules is a clever kit that combines live bacteria and ammonia protection to get your aquarium up and running faster and in better condition. Designed for both freshwater and saltwater tanks, it combines BioDigest Start, which quickly initiates the nitrogen cycle, and Stop Ammo Start, which helps neutralize the nitrogen in ammonia to minimize risks during the initial setup. This dual action allows for a more stable biological filtration system to be established from the very first hours. Ideal for a new tank or for restarting a renovated aquarium, this kit helps ensure a safe start, reduces stress on the system, and allows you to introduce your first hardy fish more quickly.
SEACHEM Pristine is a 100% natural product composed of a unique blend of specific bacteria that improve water quality in freshwater and saltwater aquariums. These bacteria have been selected for their robustness and their ability to survive. adapt to all aquatic environments.
What they think about it
(and they are right...)
Dimitri C.
First use so not enough experience, but I trust the brand because I have products of this brand for the aquarium. (Translated review)