MetroPlexTM is an efficient and protected remedy for several protozoan and anaerobic bacterial diseases of fish (Cryptocaryon, Hexamita, Ichthyophthirius). It does not adversely have an effect on the filter bed and is easily got rid of with carbon. There may be little danger of overdosing. Usual dose is 125 mg/10 gallons. Directions: Use 1-2 measures (included) for each and every 40 L (10 US gallons). Repeat each and every 2 days for up to 3 weeks or until symptoms disappear. Turn off UV, ozone, and chemical filtration. To feed, blend 1 measure with about 1 tablespoon of frozen food paste. To minimize loss all the way through feeding use with FocusTM. To fortify palatability use with GarlicGuardTM or EnticeTM. Food is also refrozen.