ABA COLOUR FISH & SHRIMP is a natural extract from the leaves of the Catappa tree (Terminalia Catappa L.). Catappa leaves are added to aquarium water for their healing effects on fish and shrimp. ABA COLOUR FISH & SHRIMP is the effective, liquid version of the leaves. Catappa leaves release healing substances when immersed in water. The downside is that, over time, they decompose, resulting in the release of organic compounds. This has a number of unpleasant side effects: it turns the water brown, and the released organic compounds contaminate the water. ABA COLOUR FISH & SHRIMP is the answer to these problems. It does not discolor or contaminate the water and lowers bacterial counts, significantly reducing the risk of disease. ABA COLOUR FISH & SHRIMP allows fish and shrimp to thrive and have more vibrant colors.