what's a good return rate for a 40g long? i have a mag something on my 75g because it was given to me, but with my lady's tank, i have no idea what i should be looking for? and does anyone have one i can buy?
its a little under 4ft from the bottom of the sump to the top of the DT. i'm going to have two power heads in there as well as the return. it would be nice just to have the return as circulation but not sure if that would work. for a short tank, it might but the 40 long is 48" long.
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