Thinking I'll just pick up a ZooMed 501 and squeeze some filter juice from my Eheim 2215 into it...but then I got to thinking...should I just buy another Eheim? I know the 2215 is overkill for the shrimp/small fishes tank in terms of flow (unless I baffle it, of course...) but since it's so large the bio-filtration will be ridiculously nice for what I'm planning to stock it with. I plan to have a dual-light 24" 48W T5HO fixture, EI dosing, CO2 and stocking will be 20 Fire Red Cherry Shrimp (breeding will occur, lol), 5 Pygmy Corys, 3-5 Otos (algae pending...might just let the shrimp handle it) and 10 or so Neon Tetras or similarly sized fishes and also probably a handful of trumpet snails. Thoughts on filtration? I'd rather just go ahead and spend the extra bit if I need to rather than waste the money on a filter that won't get the job done and then have to upgrade later. Thanks as always, folks.