I just got a XP3 off of craigs list but wanted to modify it up a little... im just curious, if anyone else has ever "inhansed" their canister filters...
On my XP4, I dremeled down the little edges of the baskets and cut off the little basket handles to prevent the slime from my goldfish from tangling in it and reducing the flow. I dont think any mods would be necessary for your canister.