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)
Hy Carb Special Deltec 2.5 kg is a premium limestone aggregate designed specifically for Deltec fluidized bed calcium reactors .
Order it before
15:00 Monday
and receive it
on
Tuesday, February 3, 2026
with
Chronopost - Livraison express à domicile
Deltec Hy Carb Special has been specifically formulated to work perfectly with Deltec brand calcium reactors. It is recommended to wash the granule thoroughly before use to avoid unwanted deposits. Once introduced into the reactor, it begins to dissolve slowly at an ideal pH of 6.3, enriching the water with calcium and magnesium – two minerals essential for the development of the coral skeleton and the ionic balance of seawater.
Composed of calcium and magnesium carbonate , this pure granulate contains no phosphates , making it a safe and effective solution for sensitive reef aquariums. This natural composition allows for controlled dissolution that does not cause mineral spikes or sudden pH fluctuations. The result? Chemical stability that benefits the entire aquatic ecosystem.
With a recommended dosage of 0.4g per litre , Hy Carb Special offers excellent cost-effectiveness. The 2.5kg bag packaging provides ample surface area coverage and long shelf life, making it an economical choice for demanding aquarists. Its specific particle size allows for smooth flow in fluidised bed reactors, promoting even distribution of minerals throughout the aquarium.
No need to add magnesium separately: this granulate combines calcium and magnesium in a single product. This significantly simplifies reactor maintenance and eliminates the need for frequent adjustments. Its stability and perfect compatibility with Deltec systems guarantee optimal results without hassle.
Solution 3 of trace elements concentrated in iodine and fluorine dosed for direct use in the aquarium. The range of trace elements from Zoanthus.fr allows a balanced supply of all the important elements present in natural sea water.
Solution 3 of trace elements concentrated in iodine and fluorine dosed for direct use in the aquarium. The range of trace elements from Zoanthus.fr allows a balanced supply of all the important elements present in natural sea water.
Solution 2 of trace elements concentrated in heavy metals dosed for direct use in the aquarium. The range of trace elements from Zoanthus.fr allows a balanced supply of all the important elements present in natural sea water.
Solution 1 of trace elements 1 liter of Zoanthus, concentrated in strontium and barium dosed for direct use in the aquarium. The range of trace elements of Zoanthus.fr allows a balanced supply of all the important elements present in natural sea water.
Solution 1 of trace elements concentrated in strontium and barium dosed for direct use in the aquarium. The range of trace elements from Zoanthus.fr allows a balanced supply of all the important elements present in natural sea water.
Solution 1 of trace elements concentrated in strontium and barium dosed for direct use in the aquarium. Zoanthus.fr 's range of trace elements allows a balanced supply of all the important elements present in seawater natural.
Solution 3 of trace elements concentrated in iodine and fluorine dosed for direct use in the aquarium. The range of trace elements from Zoanthus.fr allows a balanced supply of all the important elements present in natural sea water.
Solution 2 of trace elements concentrated in heavy metals dosed for direct use in the aquarium. The range of trace elements from Zoanthus.fr allows a balanced supply of all the important elements present in natural sea water.