
We are novice fishermen. Nobody told us that betta fins could break if the filter was too strong. Unfortunately, we learned it the hard way. After some research I found these filter caps. They work like magic! Borealis is on the mend and has never been happier.

Powerful And Quiet Submersible Pump For Aquarium, Pond, And Hydroponics: KEDSUM 660GPH Pump With 6Ft High Lift And 3 Nozzles
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KEDSUM Battery Aquarium Air Pump: Ultra-Quiet Rechargeable Fish Aerator with Dual Outlets - Ideal for Fish Tanks, Outdoor Fishing, Fish Transportation, and Power Outages
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Mini pump Xiaomi Mijia Electric Pump 1S, plastic, black
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