Dennerle Humin Elixier 500ml

Dennerle Humin Elixier is a tropical water conditioner for creating ?black water? conditions in biotopes for fish such as Discus, Neon Tetras, Angelfish, dwarf cichlids and long whiskered catfish. It contains humic and tannic substances that strengthen the mucous membrane and therefore reduces the risk of stress and skin diseases. Available in 250ml and 500ml bottles.