I recently picked up a 125 however the previous plumping had to be cut in order to move the tank. There are 8 overall holes drilled into the back of the tank. Looking for any suggestions, general tips, or designs since I plan on redoing it all! My plan is to have three holes in the middle, shaped like a small v, as intakes. The highest holes on the side as returns and seal the remaining holes. A 40 gallon breeder will be used as a sump below the tank.