I am currently in the process of planning out my 90 gallon tank for my Midas cichlid. I was at first gonna run 2 Marineland 400 on it. But after some thinking and reading I'm considering a sump. Do I need a sump for this tank? Which would be better for the health of the aquarium, the sump? 2 Marineland 400? Or both? And if the sump any advice on setting up the sumpk. I have a 30 gallon I can use if I do go with the sump. Would that be a large enough tank for the sump?