65 gallon tank

[DanielC.]

HI, my names daniel, currently in the process of starting a reef tank. Have done lots of reading on this site and have found endless amount of useful information. Few question for the pros, i have one 2inch bulkhead for my overflow, and one 1 inch return, my tanks 48,16,20. Was planning on putting my 2inch overflow on the top right corner and my 1inch return on the far left side of the tank. Do you see any problems with this layout?

Thanks, Daniel.