Tetra pond medifin is effective treatment for most common pond fish diseases combination of active ingredients effective against bacteria parasites and fungi broad spectrum of activity for best chance of recovery supports wound healing by preventing secondary infectionsr r harmless to fish plants and filter bacteria easy to useapplication add 50ml of medifin to every 1150 litres 250 gallons of pond water disease recovery can be advanced by using tetrapond aquasafe in conjunction with