I love these filters. I've used all kinds of filters created, these are the best. Sponge filters trap nitrifying bacteria better than ceramics, gaskets, fabrics and threads. You simply clean them one by one once a month with a regular water change. I have used them in freshwater aquariums with discus and flowerhorn, rearing young fish and saltwater. I've been using the same sponge filter in my fry tank for at least 5 years and have never had any fluctuations in water quality, ZERO with proper care compared to my other tanks where I have lint canisters, hangons, wet/dryers and other high quality equipment that cost me lots of money to have. Lately I've gotten fed up with the instability and bought a few more and threw away the rest. My water is crystal clear and fish poop collects right in front of each sponge and very easy with a micro mesh, you scoop it up right away and clean it with a net in the sink. Buy this and throw away those crappy canisters and backpacks!
KEDSUM Quiet Rechargeable Battery-Operated Aquarium Air Pump With Dual Outlets - Perfect For Fish Tank, Outdoor Fishing, Transport, And Emergencies
28 Review
🌿 Enhance Your Freshwater Fish Tank with Greenpro Java Fern on Driftwood Live Aquarium Plants
27 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
Aquael Fan Filter Mikro Plus
35 Review
Vacuum cleaner TEQQO Aquastick 3 in 1 Power, grey/turquoise
26 Review
🧲 Efficient Magnetic Fish Tank Cleaner: KEDSUM Floating Clean Brush with Handle Design
34 Review
Efficient 2-In-1 Magnetic Fish Tank Cleaner With Non-Slip Design And Scratch-Free Blades
37 Review
Steam cleaner Deerma Deerma DEM-ZQ610 EU, white/red
68 Review