"I actually use this (cut up) as filter media in my hang over back filters, instead of the expensive cartridges.
This material offers an incredible amount of room for beneficial bacteria to attach to,"... Read all reviews
"I wanted to thank you guys at Petsmart to carry this filter. It was recommended to me by professoinnals and works great. It is econnomical and easy to use. Just cut the pad to fit your filter and"... Read all reviews