I used a Filstar 3 for over a year on my FO...only reason I dont use it now is I moved the filtration to the basement...otherwise I would still be using it.
I use a canister filter on two of my FO tanks (30 and 125) and have great results. Espcially because they are my aggressive and semi-aggressive so theres a lot of meaty particles to be caught up. just make sure you clean them regularly or you may have nitrate problems. I skipped one month of cleaning the filters and ended up with a small spike for the first time.