Metronidazole is an effective and safe treatment for several protozoan and anaerobic bacterial diseases of fish (Cryptocaryon, Hexamita, Ichthyophthirius). It does not adversely affect the filter bed and is easily removed with carbon. There is little danger of overdosing. 

• FOR AQUARIUM OR POND USE ONLY
• NOT FOR HUMAN MEDICAL USE
• NOT FOR VETERINARY USE
• NOT FOR FOOD FISH USE