These double-ended brushes are great for cleaning and work better than some other types of brushes I have tried. However, I have to keep replacing them because my cats also love them, find them wherever I try to hide them, and then chew the bristles off!

Pros: well-designed for the job

Cons: too good a cat toy

I love this for the fact that it has two different sizes of brush,but more so because it can be slid up through the whole filter intake and clean out everything.
One of my favorite brushes!

Pros: can get to the tough spots works great!

Cons: none

This is an excellent tool for cleaning tank, filter, accessories. Makes a cruddy job a little easier.

Pros: Excellent for cleaning

Cons: None

This is a mst have for cleaning filters, protein skimmers, and everything related to your tank.

Pros: cleans tight spots

Cons: none

This is a great brush! It makes cleaning my aquarium a snap and was affordable too!

Pros: everything

Cons: nothing