hygger Aquarium Single Sponge Filter for Small Fish Tank 5-15 Gallon

I was originally using the filter that came with my 5 gallon aquarium but I hated how the flow of it whipped my betta around when he swam near it and having to replace the filters regularly since they fell apart easily. I tried using a sponge filter in that to reduce waste and the flow rate but a biofilm formed at the water surface from lack of flow from the filter. I read online how these type of sponge filters are ideal specially for bettas so I bought this filter along with the Hygger air pump. It was easy to set up and while it takes up some room in the tank it works SO much better than the original tank filter. It's fairly quiet, the flow is gentle and doesn't whip my betta around, the water is crystal clear and no biofilm on the surface. I just rinse the sponge in old aquarium water after siphoning every month or so after 6 months it's still in great shape. I like that it came with a replacement sponge but I have a feeling it'll be a while before I have to replace it.

You cannot go wrong with Hygger products. This single sponge filter works great and not too bulky for a 5 gallon tank either.

Have this filter in a 10 gallon tank. Compared to the Aquaneat sponge filter in my 6 gallon aquarium, it's quite noisy. The outlet pipe produces large bubbles, in comparison. The filter could be improved if there were a way to modify it with an air stone. The large bubbles also make the water surface a little splashy, wetting floating plants, which can cause some rot problems. This might be a plus if you have unwanted duckweed! Duckweed doesn't appreciate surface agitation.

Works really well surprised for the price I have this in a 5 gallon tank came with extra sponge, easy to clean all parts come apart

Easy setup. Good size sponge for housing the filtering good bacteria. The extendable and directional nozzle is a great feature. Make sure you have a strong enough air pump, though.Before setting up my tank, I kick started the cycling of this filter on my other tank. Which made cycling the new tank almost instantaneous. But that's not a necessity. It's about 4 weeks old now and the shrimp love to crawl all over it and forage on the surface. With the right sized air pump it has good outflow, without catching my shrimp in the inlet flow.

The filter aspect is great but the suction cups are horrendous! The will not hold this in place. Again last night it came detached and sent the filter spinning destroying my live plants. It looks like a tornado went through my shrimp tank!

it works well for filtering and water movement in my fish tank! highly recommended!

I switched to this sponge filter from my traditional filter, latter produced a strong flow that whips my fish around, as well as making a loud sound that stresses my fish. Since switching to this filter my fish is in a much happier state :)

Very easy to setup and it does not create ripples on the surface if you face the nozzle on the glass side. My floaters are thriving. Keeps the water absolutely clear.