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.
Analysis
Analysis / Tests
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)
Seawater Food
Fresh Water Food
Food Basin
5€ discount for your first order with the code: BIENVENUE05 (from 100€ purchase, offers cannot be combined)
Sand
Substrate for reactor
Sea Salts
Sands / Quartz / Substrates
Remineralizing
Pond Substrate
5€ discount for your first order with the code: BIENVENUE05 (from 100€ purchase, offers cannot be combined)
Seawater Equipment
Freshwater Equipment
Basin Equipment
5€ discount for your first order with the code: BIENVENUE05 (from 100€ purchase, offers cannot be combined)
ZOA Bacter is a concentrate of non-pathogenic live bacteria fixed on a maerl substrate, designed to stabilize the biological balance in both saltwater and freshwater aquariums. Its multi-strain consortium naturally competes with unwanted algae, lowers nitrates and phosphates through assimilation, and transforms organic deposits into resources for filtration. Result: cleaner windows, clear water and a healthier biotope. Fish and corals regain vitality and resistance (protection against vibrioses), while a beneficial biofilm is established to feed certain invertebrates. Compatible with skimmers and filters, the effect is quickly seen, especially with correct mixing. 40 ml bottle (34 g) – 10 9 CFU/g , GMO-free, no risk of overdose .
The heart of ZOA Bacter is a synergistic blend of beneficial strains deposited on a highly porous maerl substrate. These microorganisms quickly colonize the environment, compete with algae for nutrients , and transform organic “mud” into assimilable compounds. At the same time, they capture nitrates and phosphates to multiply: fewer nutrients, therefore less algae and clearer water. The biofilm thus created stabilizes the tank and nourishes certain benthic species, while the windows stay clean longer.
By restoring a robust bacterial flora , ZOA Bacter supports the overall immunity of the tank and limits the establishment of opportunistic bacteria such as Vibrio. LPS and SPS corals particularly appreciate this stability: easier acclimatization, tissues less prone to necrosis and more open polyps. In fish, we often observe more lively behavior and better palatability.
For an effective start, carry out a 2-week inoculation (measuring spoon included). During distribution, turn off the skimmer or rapid mechanical filtration for about 10 minutes and pour the dose into a well-mixed area.
Then, switch to weekly maintenance dosage : 2.5 ml (≈ 1 scoop) for 500–1,000 L, and 1.25 ml (≈ ½ scoop) for 30–500 L. The absence of overdosing makes use worry-free: adapt according to the organic load and the response of the tank.
ZOA Bacter perfectly complements a high-performance skimmer, mechanical and biological filters . In reef tanks, the effect is often spectacular under strong mixing . In fresh water, the reduction in nutrients makes the aquarium more stable, with a less clogged substrate . Can also be used in outdoor ponds from 15°C .
Formulation at 10 9 CFU/g , non-pathogenic and GMO-free strains. Do not ingest, avoid contact with eyes , and keep out of reach of children . Bottle: 40ml (34g) .


Zoanthus Lab Strontium 250 ml is a concentrated solution designed to precisely correct strontium deficiencies in marine aquariums. Naturally present in seawater, strontium (Sr) contributes to overall ionic balance and supports the growth of calcifying organisms. Formulated with purified water and pharmaceutical- grade strontium chloride hexahydrate , this product guarantees a clear, stable, and perfectly measurable concentration. Free of chelators and unnecessary additives, it is ideally suited for management based on ICP analysis. A transparent and rigorous solution, designed for discerning aquarists.


ZOANTHUS.FR Cobalt – 250 ml is a concentrated solution designed to finely adjust cobalt levels in marine aquariums. This essential trace element plays a key role in the biological balance of the tank and must be dosed carefully. Made with purified water and pharmaceutical-grade cobalt chloride hexahydrate, every addition is controlled, measurable and easy to integrate into an ICP-based routine.


Zoanthus Lab Iodine 250 ml is a concentrated solution designed to precisely correct iodine deficiencies in marine reef aquariums. Iodine (I) is an essential trace element involved in numerous biological processes in soft corals, crustaceans, and microfauna. Formulated with purified water and pharmaceutical-grade sodium iodide , this supplement guarantees a stable, clear, and perfectly measurable concentration. Free of unnecessary chelators and stabilizers, it integrates ideally into ICP- based management systems. A simple, precise, and transparent approach for optimal control of your reef tank.

Zoanthus Lab Fluorine 1000 ml is a concentrated solution designed to accurately correct fluorine deficiencies in marine aquariums. Naturally present in seawater as a trace element, fluorine (F) contributes to the overall balance of the reef environment and to the proper biological functioning of many organisms. Formulated with purified water and pharmaceutical-grade sodium fluoride (NaF), this product provides a clear, stable and fully measurable concentration. Chelator-free and without unnecessary additives, it fits perfectly into an ICP-based management routine. A rigorous and transparent solution for demanding aquarists.
ZOA Bacter is a concentrate of non-pathogenic live bacteria fixed on a maerl substrate, designed to stabilize the biological balance in both saltwater and freshwater aquariums. Its multi-strain consortium naturally competes with unwanted algae, lowers nitrates and phosphates through assimilation, and transforms organic deposits into resources for filtration. Result: cleaner windows, clear water and a healthier biotope. Fish and corals regain vitality and resistance (protection against vibrioses), while a beneficial biofilm is established to feed certain invertebrates. Compatible with skimmers and filters, the effect is quickly seen, especially with correct mixing. 40 ml bottle (34 g) – 10 9 CFU/g , GMO-free, no risk of overdose .
ZOA Bacter is a concentrate of non-pathogenic live bacteria fixed on a maerl substrate, designed to stabilize the biological balance in both saltwater and freshwater aquariums. Its multi-strain consortium naturally competes with unwanted algae, lowers nitrates and phosphates through assimilation, and transforms organic deposits into resources for filtration. Result: cleaner windows, clear water and a healthier biotope. Fish and corals regain vitality and resistance (protection against vibrioses), while a beneficial biofilm is established to feed certain invertebrates. Compatible with skimmers and filters, the effect is quickly seen, especially with correct mixing. 40 ml bottle (34 g) – 10 9 CFU/g , GMO-free, no risk of overdose .
ZOA Bacter is a concentrate of non-pathogenic live bacteria fixed on a maerl substrate, designed to stabilize the biological balance in both saltwater and freshwater aquariums. Its multi-strain consortium naturally competes with unwanted algae, lowers nitrates and phosphates through assimilation, and transforms organic deposits into resources for filtration. Result: cleaner windows, clear water and a healthier biotope. Fish and corals regain vitality and resistance (protection against vibrioses), while a beneficial biofilm is established to feed certain invertebrates. Compatible with skimmers and filters, the effect is quickly seen, especially with correct mixing. 40 ml bottle (34 g) – 10 9 CFU/g , GMO-free, no risk of overdose .
ZOA Bacter is a concentrate of non-pathogenic live bacteria fixed on a maerl substrate, designed to stabilize the biological balance in both saltwater and freshwater aquariums. Its multi-strain consortium naturally competes with unwanted algae, lowers nitrates and phosphates through assimilation, and transforms organic deposits into resources for filtration. Result: cleaner windows, clear water and a healthier biotope. Fish and corals regain vitality and resistance (protection against vibrioses), while a beneficial biofilm is established to feed certain invertebrates. Compatible with skimmers and filters, the effect is quickly seen, especially with correct mixing. 40 ml bottle (34 g) – 10 9 CFU/g , GMO-free, no risk of overdose .