Completely safe for use in ornamental ponds and does not contain harmful metals such as copper and zinc. Suitable for use with ultraviolet clarifiers and biological pond filters, it is also harmless to fish, frogs & all birds and animals who decide to visit your pond for a refreshing drink.

Features:

• Effective blanketweed treatment
• Fast-acting treatment
• Contains specially cultivated beneficial bacteria
• Doesn't copper, zinc or other metals
• Safe for fish and wildlife