Unfortunately they worked too well. My mistake: I tried to use in a pond filter. Filter too fine for 900 gallon pond. My debris quickly accumulated and completely clogged the goldfish pond, not allowing adequate circulation in the system. (my mistake in the choice) Good filters! Use it in an aquarium instead.
Aquael Fan Filter Mikro Plus
35 Review
πΏ Enhance Your Freshwater Fish Tank with Greenpro Java Fern on Driftwood Live Aquarium Plants
27 Review
KEDSUM Battery Aquarium Air Pump: Ultra-Quiet Rechargeable Fish Aerator with Dual Outlets - Ideal for Fish Tanks, Outdoor Fishing, Fish Transportation, and Power Outages
35 Review
KEDSUM 330GPH Ultra Quiet Submersible Pump With High Lift And Grounded Power Cord - Ideal For Fish Tanks, Ponds, Aquariums, Statuary, Hydroponics - Includes 3 Nozzles And 1500L/H Water Flow
39 Review