Is the Eheim 2217 enough filtration for a 92g corner tank? I'm particularly interested in it's ability to handle the biological filtering. I'm also considering adding a sponge filter that can be moved to a quarantine tank.
i use an eheim pro II 2026 for a canister on my 75g and still felt that i needed a large HOB to supplement. it really depends on your desired bioload.. i'm sure a group of small shoaling fish wouldnt be a problem, but if youre trying to keep some tankbusters, i would upgrade.
The 2217 should work fine for bio filtering on a tank that size - it really depends on your fish load. I dont think it'll move enough water though (an additional powerhead may suffice). I run an eheim 2028 and a 2228 on my 90 and the water flow is decent, but could be better.