There is a well-known standard preparation that is used as a treatment and as a general prevention of most fish diseases commonly encountered by the aquarium trade. Use the latest chemicals that are effective against tail and fin rot, fish and egg fungi, mouth fungus, white spots, flukes and velvet, fin and skin turbidity or cloudiness and external injuries. Effective against diseases caused by Ichthyophthirius spp. (white spots), Costia spp., Trichodynia spp., Trichodinella spp., Chilodonella spp. (protozoan parasites - main cause of white spots and sliminess of the skin), Saprolegnia spp., (cotton-like threads grow on gill filaments fish and egg fungi), Trichodinella spp., Flexibacateria (cotton-wool disease or mouth fungus), Cryptobia spp.,and Trypanosoma spp., (listless behavior, emaciation and “pop eye”). Some fish, such as “scale less catfish”, tetras and some characins may not tolerate this remedy very well. Use half the dose and remove the fish immediately to clean and well aerated water at first sign of distress.