Pond HealthGuard (500ml) Oasis

Pond HealthGuard? is a safe disinfectant to promote the control of parasitic bacterial fungal and viral infestations of fish in ponds. It contains no malachite green or other dye based disinfectants that can discolor or quaternary disinfectants that foam. Used as directed it is safe for fish plants and the biological filter. A 2 Liter size treats over 4 000 gallons.