Sera Blackwater Aquatan, 5L

Sera blackwater aquatan is a water conditioner for the natural tropical black water effect in freshwater aquariums.

Sera blackwater aquatan with the Bio-Protect Formula converts tap water into dark, clear and fish-friendly fresh water like in the tropics. The water purifier promotes vital and healthy fish, as well as invertebrates such as shrimp and crustaceans. This also promotes natural colours and natural behaviour. Heavy metals are bound immediately, the pH remains unchanged. Algae growth is reduced by the reduced amount of light. The water remains coloured for a long time.

Application:
1 cap of sera blackwater aquatan to the end of the outer fluting (10 ml) in 50 litres of aquarium water. A short-term clouding is desirable and shows the effect of the product. After a few hours, the turbidity has disappeared and the water is dark and clear.

Our expert Oliver Knott recommends:

With sera blackwater aquatan, you can treat your aquarium water in a biotope-friendly manner, just like in the tropics - the black water effect also reduces the formation of algae!