OK, I'm getting a 20 gallon for my 1 inch GSP's to house them for a couple months until I get the 60 gallon tank. I was wondering what would be the best bang for my buck as far as filters go. Thanks for advice in advance.
And what kind of Eheim would I get?Lithril said:Undergravel filters are very dated and really aren't suited to the bioload in your tanks, they run off of a powerhead.
Internal filters stick to the glass inside the tank but I've never heard them "recommended" for puffers. Personally if you want the most effective go for an external canister filter like the Eheim.