Coquilles d’huître pour bassin - 5KG par sac POSE_DANS LE SOL Algisin is a powerful and

Algisin is a powerful and precise solution against filamentous algae: within a few days

When the lid is open

A useful side effect is the suction of warm surface water

before and after each dosage

Air flow : 75 l/min

Coquilles d’huître pour bassin - 5KG par sac POSE_DANS LE SOL Algisin is a powerful andOyster shells help to maintain good GH+ and KH+ values. These oyster shells have a stabilizing effect on the KH and PH values. KH indicates the carbonate hardness of the water. Many people think that if their tap water is harder, it won't cause problems for the KH and pH of the water. KH works a bit like a buffer for the acidity (pH) of the water. Fish, plants and the biological filter "consume" the water hardness (KH). If the water is not changed