Originally Posted by TankGirl
I don't think either one are going to do the trick by themselves. I would look into some of the larger canister filters.
Agreed, but if you are looking at a comparison of those two as part of a filtration system, I prefer the ACs, as they allow for more media customisation, and have that 500gph flow rate.
G. A. Christian Bilou, Herpetologist
Founder/Director, Reptile Rescue Alberta
Past-President, Calgary Aquarium Society