I was wondering, does a canister have to be set up under a tank or could it be next to it? I have my tank pretty much close to the floor.
I was debating about getting a small eheim ecco for my 10 gallon (and also to have it handy in case any new tanks come along
). Would the ecco rated for 35 gallon aquarium be too big for a 10 gallon? Thanks 
I was debating about getting a small eheim ecco for my 10 gallon (and also to have it handy in case any new tanks come along