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Tropical QUEREX - bottle 30ml (per 300 L of water)
A biologically active oak bark extract with a high content of natural tannins. Used to create the so-called black water required for breeding some tropical fish, especially characins and small cichlids from rainforest biotopes in South America. These fish require soft water with a low pH value and a high tannin content. QUEREX reduces the pH value, has a positive effect on fish activity, actively stimulates spawning, protects eggs against fungus, and naturally limits the development of green algae.
TREATMENT: when preparing water for spawning, add sufficient QUEREX to turn the water an amber colour. The desired acid pH value can be achieved by the additional application of AQUACID pH MINUS.
CAUTION! Use only with soft, slightly acid water. Application to hard, alkaline water will totally inactivate QUEREX and cause precipitation of its active tannins.
Try also: Ketapang, Ketapang Extract, Torfin Complex