[Glimmerman911]

Perfect time to plan waterflow then, good stuff.

What style, number, and locations of overflows are you going to use? Are you going to drill the bottom of the tank for the overflows?

Two corner overflows, each with 2x1.5" bulheads would be nice, use one in each overflow for drain, 1 for return. To add in redundancy I would only have the pump matched to a single 1.5" drain though, so if one fails, the other can take up slack.

Then use probably 3 1.5" bulheads for the closed loop, 1 to pull water from the center of the tank, and 2 spread out to distribute the watet back in, preferably pointing somewhat towards each other to get some turbulent flow. You could t-off the returns with 3/4" or 1/2" loc line to distribute the flow around the tank more too.