hygger Aquarium Corner Filter 85GPH for 1~8 Gallon Fish Tank Bio & Sponge 3-Stage Filtration System with Aeration, Adjustable Flow Submersible Internal Power Filter

For the price and size, a very good filter. Silent and powerful. Easy to clean. If it makes noise, check the impeller.

I put this Hygger filter in a 5-gallon nano tank and wow. I had algae and cloudy water, and within two days the tank was beautifully clear again. I can literally see the back wall of the tank now. The flow is gentle enough for a small tank but still very effective. It doesn’t stress the fish and there’s no strong current, just clean, clear water. It’s also quiet, easy to set up, and fits perfectly in a nano tank. This filter actually does what it’s supposed to do instead of just taking up space. If you’re dealing with algae or cloudy water in a small tank, this one works fast. I’d absolutely buy it again.

THIS MODEL WAS NEEDED TO PERFORM IN A LARGER TANK AND OUR OTHER UNITS COULD NOT MATCH IT'S FUNCTION.

Works great in 5 gallon tank, turned up on rock n roll pump fully submersed in the water and air turned all the way up.. or should I say valve fully open. Filters great for two gold fish.

Works as advertised and on time.