Need Filter Advice

I have an aquaclear 50, an aquaclear 20, and an eheim ecco cannister... on my 30 gallon. As far as filtration goes, let your water tests and experience be your guide.
 
Or you can do yourself a real favor and save some serious cash by buying the only canister filter still in production after 22 years because of it simplicity, dependability. Recognized world wide as the best performing 100 gallon filter for the price.
http://www.aquariacentral.com/forums/showthread.php?t=211106
 
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