Mumoo Bear Aquarium Filter Fish Tank Air Pump Skimmer Biochemical Sponge Filter Aquarium Filtration Filter

The product is attractive but I can’t use it . I tried multiple ways to see how to use. But I can’t find a ease solution

Good filter, but you need an air pump for it to work.It’s good for 10-20 gal tanks

It's a good product and works very well in my saltwater quarantine with copper.

Excellent product with freebies!