The leaves of the catappa are known for their healing effect on fish and shrimp diseases they reduce the amount of germs prevents fungal infections encourages breeding combat slime disease and stimulate vitality and colour in fish and shrimp one disadvantage of catappa leaves is that they often colour water brown and also carry with them other organic contaminants easy life catappa x ensures that aquarium water stays clear while noticeably improving vitality and colour of the fish and shri