gallon per hour

Given your bioload..I think you should be ok...more frequent water changes are always your insurance!
 
I'd say you want total turnover of about 8-9 times an hour, but that includes power heads creating movement as well as the power of the filters. My goal is to have minimal dead areas, a few high flow areas, and the rest somewhere in between. With larger tanks, this is easier to accomplish, since you have more room to play with.

But--as long as the parameters are in the green and the fish are happy, you should be fine.
 
Since the tank is broken into 3- 2 foot sections, I currently have a filter in each section. Would that be a good way to keep things, and avoid "dead" spots, even if the third filter was of a smaller capacity(something made for 50 or so gallons)? I have a notch in my wall, it is supposed to be decorative, but all it does is limit the size of the filter in the middle section of the tank :( !!

P.S. My parameters are always good, but I rinse my sponges once a week and seem to get a good deal of crud out of them, which is also why I was wondering if I could use more filtration.
 
your only supposed to gently squeeze sponges out, im not sure how frequently, but it holds a lot of bacteria, which you want
 
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