I have a quick question, (new guy here) I'm setting up a 125 gal and I'm wondering what filter to use, wet/dry or a Canister Filter? and where is a good place to get one? online or from a shop? I live in San Antonio TX

I have a 40 gal tank and had no problems at all, even had a lot of the purple stuff, (which I was told was a good thing) I'm also trying to sell the 40 gal as I need the room for the 125 gal !!!

any idea's or tips for me too, thanks