400 gallon project

[Tracey2]

Thanks for your help. Can I ask how tall your sumps are? One of my sumps is 60x24x24, 36" will be under my DT and 24" in my fishroom/closet, I was planning my stand 36" tall with a door on one end to access the part of the sump under the DT but if I use the 2x6 like you have on top I will not have alot of clearance, could I do the top frame in 2x4 for a 270g tank?