The eSHa 2000 Fungus, Finrot and Bacteria Treatment is a general aquarium treatment designed to target disease organisms and secondary fungal infections. This treatment works on a wide range of fungal, bacterial and parasitic infections, helping to heal wounds and protect the delicate skin layer of fish.This is a broadly effective tool, making it a great choice if you're unsure about the nature of the problem in your tank.eSHa 2000 Fungus, Finrot and Bacteria Treatment is a 3-day treatment. Once that treatment has finished, it's best to wait a week or two and see if the problems persist. If they do continue, it's likely you will need a different treatment.We don't recommend using eSHa 2000 more than once a month. While it's difficult to overdose eSHa 2000 it can have a negative impact on fish health if administered too often.eSha 2000 Fungus Finrot and Bacteria Treatment can be used to treat; fungus, dropsy, bacterial skin infections, gill inflammation, fin rot, tail rot, ulcers, velvet disease and other wounds. Some of the common symptoms in tropical fish and coldwater fish that eSha 2000 can treat include discoloured skin patches, shimmying, disease skin problems and gill problems. It also effectively blocks Neon Tetra disease, as well as many others.eSHa 2000 can be used as a preventative measure for treating fish and plants during quarantine, and as a beneficial tonic when raising fry or helping with wound healing, and is well tolerated by fish, plants and shrimps, as well as filter bacteria.This treatment is suitable for all freshwater systems, coldwater and tropical. The 20ml bottle is effective at treating 800l of aquarium water through one course of treatment, you will need to purchase multiple bottles or the 180ml bottle for larger aquaria. This can also be safely used alongside eSHa Exit, the whitespot treatment, for an extremely broad range and all round treatment if required.