Good info! Setup the tank tonight and the eheim canister is leaking. Don't know if I should spend the $20+ on an o-ring or just try one of the sunsun filters off amazon for $56.
I have the Aquatop (cf-400) branded version of the sun sun. Its a GREAT filter, whisper quiet. And easy to maintain (if you can lift it) This sucker is about the size of a small office trash can lol!