I had used this in one of my 29 gal tanks it cleaned very well and lasted for a few years. It was pretty easy to clean and maintain

Pros: cleans great

Cons: little pricy

I liked this pump. Not as quiet as most but works excellent when you keep it clean. Filters arent expensive either.

Pros: Cleans good

Cons: Not as quiet as most

Works great in circulating, and cleaning the water in our tank. It's quiet too which ia great!

Pros: Works well, quiet

Cons: None known

This works well for my tank and I recommend it as a filter system to use regularly.

Pros: Cleans well

Cons: I hate cleaning the thing

Keeps my tropical tank pretty clean,but not strong enough for my goldfish

Pros: works decent in a 20 gal. tank

Cons: none