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
Basin Supplements
Basic elements
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)
Sera KH/pH-plus increases the KH precisely and sustainably to the desired value. The pH value is also safely increased and stabilized.
Order it before
15:00 tomorrow
and receive it
on
Tuesday, December 2, 2025
with
Chronopost - Livraison express à domicile
Carbonate hardness (KH) is one of the most important parameters of aquarium water.
Many freshwater aquarium fish prefer relatively hard water. In addition, KH has a buffering effect which prevents dangerous changes in the pH value (eg pH drop).
This is why, as a general rule, for community aquariums it is necessary to maintain a KH value of at least 6° dKH (x 1.78 = TAC French value) (much higher for special cases, such as cichlids Africans). In this way, the well-being of the fish is ensured and the water turns out to be very resistant and easy to maintain.
sera KH/pH-plus increases the KH precisely and permanently to the desired value. The pH value is also safely increased and stabilized.
BioNitrat Ex from JBL is a biological filter medium, degrades bacteria , eliminates nitrates favorable to the growth of algae in fresh water or sea water.
Sera KH/pH-plus reduces the KH precisely and permanently to the desired value. The pH value is also safely reduced and stabilized.
Water conditioner against Ichthyophthirius multifiliis (white spot disease pathogen).
Whole daphnia in jelly rich in vitamins, trace elements and proteins. These treats are also suitable for sea fish. Offers 2 times the nutritional power of frozen food!
Easy-Life Ferro contains iron easily assimilated by aquatic plants. Iron is essential to give a good structure to the leaves of plants. It “greens” the leaf by producing chlorophyll.
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 provides healthy and crystal clear water .
Reduces nitrates and phosphates. Limits the appearance of harmful algae, allows the control of zooxanthellae for optimal growth and coloration of corals.
To determine chlorine in aquarium water. For about 45 measures.
Water conditioner to lower the pH in freshwater aquariums.
Water conditioner to increase pH in freshwater aquariums.
Alkaline Buffer™ is a phosphate-free buffer solution designed to raise pH and alkalinity and control acidity with Acid Buffer™. Adjusts pH from 7.2 to 8.5.
Alkaline Buffer™ 1.2kg is a phosphate-free buffer solution designed to raise pH and alkalinity and control acidity with Acid Buffer™. Adjusts the pH from 7.2 to 8.5 .
Acid Buffer™ is a phosphate-free buffer for lowering pH and buffering with Alkaline Buffer™. Adjusts the pH from 5 to 8.
Acid Buffer™ is a phosphate-free buffer for lowering pH and buffering with Alkaline Buffer™. Adjusts the pH from 5 to 8.
Discus Buffer® is designed to replicate the natural environment of Discus (low pH and low GH (total hardness)). Discus Buffer® will lower the pH and keep it lower. It is packaged based on phosphates and is free of carbonates. It will also soften water by removing calcium, magnesium, and other divalent cations.
Discus Buffer® is designed to replicate the natural environment of Discus (low pH and low GH (total hardness)). Discus Buffer® will lower the pH and keep it lower. It is packaged based on phosphates and is free of carbonates. It will also soften water by removing calcium, magnesium, and other divalent cations.