• Be sure to estimate water volume accurately,
and disperse the chemical evenly over the entire
pond to prevent hot spots, areas of the pond with
excessive amounts of chemical.
• Potassium permanganate can kill algae. Low
oxygen conditions can occur following
treatment. Be prepared to aerate after treatment.
• Frequent treatment can harm fish. Wait at least
four days before repeating treatment. If fish do
not respond to treatment, reevaluate them to
confirm the diagnosis.