I know you didnt ask but if you're putting in your FR - think about noise :irked: - i had one in my family room and needed to blast TV to hear it - Things to consider - hard pipes and elbow may cause more noise - splashing of the return in the sump - skimmer return splashing in sump - also totally recommend researching "herbie method" to eliminate the overflow crashing sound. Thier is a better method that requires 3 holes in tank....can't remember name..." bean"?? anyone chime in pleaze.....
I believe it's beananimal design
The tank is predrilled, not sure I comfortable drilling another hole in it. I hovels read that method is really quiet too