No koi pond is complete without plants, which serve as a source of nutrients and domicile for the fish. There are many plants to choose from, and one of the most prominent is the parrot feather.
The dangerous thing about koi ulcers is that they can be difficult to detect until it’s too late. They are the result of pseudomonas and aeromonas bacterial strains that infect fish and which can be present in ponds even if it appears visually that the water is clean. Below are some ways to identify, treat and prevent this condition.