Sera Aqumarin 250ml. Sera Aqumarin is a multipurpose tap water conditioner for salt water aquariums. Sera Aqumarin effectively neutralises harmful chlorine in the water, helps to protect fish against stress, binds toxic heavy metals, biologically protects mucous membranes of fish and invertebrates and also clarifies the tank water. Please refer to the manufacturer's guidelines for the amounts of Sera Aqumarin to use in your aquarium and the optimum frequency of its use. 250ml of this product will treat 1000 litres of water.
