Ducks eat all plants. Barley bales (brick-sized) sink in bottom, release anti-algae compounds. No fish = no toxicity concerns. Replace as they decompose.
Avoid chemicals — ducks drink the water.
Identifying Pond Fish: Koi vs Goldfish
New Pond Fish Die-Off: Ammonia Spike from Overstocking
Sudden Goldfish Deaths in Troughs and Pond After Heavy Rain
Goldfish Eggs Survive Pond Drain? Leave or Move?
Winter Pond Management in Ohio: Keep Pumps Running, Use Barley, Test Water
Planning a Large Pond: Frog Breeding, Skippy Filters, and Volume Calculation
Cigarette Butts in Pond: Toxicity and Cleanup
Why Are My Pond Fish Hiding at the Bottom?
Identifying and Controlling Root-Eating Pond Worms
When Can Shubunkin Fry Safely Join Adult Fish in the Pond?
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