UPETTOOLS Mini Aquarium Sponge Filter, Small Internal Fish Tank Filter Detachable Submersible Filter with Air Stone Suitable for 5-20 Gallon Tank (Air Pumps and Air Tube not Included)

Easy set up, and doesn't create a lot of current in the water.

Sleek and simple , i will say the filter gets dirty quick because it’s sucking in from the bottom so getting the food. I reused each filter twice before replacing.

I bought this filter for an Axolotl quarantine bin. The water level is about 3" and around 2 gallons. Initially, the filter got dirty quickly and I was cleaning it every other day and the water was cloudy (also changed every other day). Axolotls eat a lot and poop a lot. If you don't suck the poo out with a turkey baster before they kick it around, it'll get cloudy quickly. As opposed to clear water with the air stone alone and daily or every other day water changes.I swapped out the foam pad for some polyfiber fill (pillow stuffing you buy in the big bags at the craft store--which, is also what is used in corner filters) and dumped the beads, replacing them with activated carbon. The water is crystal clear and I now rinse it once or twice a week and change the water 2-3X a week.I'm buying more of these filters for my bins.

I loved this product, it made almost no noise and was so quiet. The sponge filter was very easy to clean. Great buy!

The media could not be loaded.  I like the system but it does not make the “tiny bubbles” as is seen in the info and videos. That was a little disappointing but still it’s coolAdd on: the diffuser (the white stone-looking thing that goes into the top of the filter must be pushed down into the tiny hole in the interior of the filter. We removed the cap, pushed it in and replaced the cap…now the bubbles are small like the demo. Hope this helps those who are not “filter-aquarium “ wise like me.