got a smokin deal on CR for a 90gal...but it came with a ehiem pro 2226...will this be enough filter for about 20 african cichlids? i wont have room to hang a HOB where i want to set this up and want to use sand so an under gravel filter wont work either...not familiar with canaster filters at all and i like to "over filter".,,,,,2 penguin 350 on my 60gal..