If I were you, get another one or two Aquaclear 500/110. These one of the most economical, effecient, and easy to use filters for freshwater application. I don't believe cannisters and W/D fall in the same category, atleast in my personal experience. I currently run 3 AC 110 on my 125g and I am very happy with them, would not change it for anything else even if it was free.