I would reccomend getting another filter. IME, power filters, especially HOB filters are underrated. Aquaclears are my personal favorite due in part to the media space. The 500(I guess it's called 110 now) has a HUGE media compartment. Everything else about them is good too, and they're inexpensive. Anyway, If I were you I would put in that top fin 60 and an aquaclear filter so supplement it. a 200 or 300gph model filled with sponges would make a nice bio/mech filter. it's much much better to have too much filtration than not enough, and HOB filters are cheap. On my 55, I have a, aquaclear 500 with sponge and ceramic noodles, and an aquaclear 150 with just sponges, and a 150gph powerhead for water circulation, pointed at the 500's intake form the opposite end of the tank. Yeah, a little over-filtered for the low bioload the tank has, but your fish will love you if tyou get a second filter. Oh, and definitely buy your filter online. for my 500, I paid $35 at big al's with a $6 shipping charge, vs. $60-70 at my LFSs.