Water turnover

[RayAllen]

I have Mag 7 (throttled down so the water moves slowly through the fuge) return going into my 39g which is only 24x18x20 and I have a Hydor 2 and 3 in their as well. The 3 is at the bottom of the tank and the 2 at the top. Plenty of flow.

A 4ft 55g is a little diffrent, Where do you have the positioned in the tank? Id probably have one at each end and 1 more hydor 3 in the middle.