Works great, can go in smaller tanks.
June 17, 2015
Its compact enough that I use it in a 6g bow-front I also bought from this site, it doesn't take up much space and is a great simple filtration option. Love sponge filters because there's nothing that really can "break" with them, and they take no priming/meddling with like HOB and Canisters to get it going just stuff in an airline tube with an air pump at the other end and you're done!
Pros:compact and efficient