Using Barley Straw to Control Late-Season Algae in a Canadian Pond

Barley Straw Works

Small barley straw bales (or pellets) release natural compounds (lignin peroxides) that inhibit algae growth without harming fish or plants. Available at nurseries and online.

Application

• Place in moving water (waterfall, filter outflow).
• 1 bale per 1,000 gallons is typical.
• Takes 2-4 weeks to activate; lasts 4-6 months.
• Replace before it fully decomposes.

Personal Note

Canada is beautiful—visited from coast to coast. Hope to see Vancouver and Calgary next year!