Tetra Algizit, with ist highly effective agents, reliably combats even stubborn algae problems. Algae have a negative effect on aquaria and inhibit plant growth by consuming valuable nutrients. On a long-term basis, algae negatively influence the biological balance of aquaria. The water is not discoloured.+ quick remedy for acute algae problems+ counteracts against green, brown and red algae+ also combats stubborn algae (brush or beard algae)+ tablets dissolve quickly, without discolouring the water+ achieves maximum effect thanks to ist highly concentrated formula+ for all freshwater aquariaDosage Tetra Algizit:Add 1 tablet per 20 l of aquarium water. Repeat dosage after 4 weeks if required. Content sufficiently for 200 l water.