I need a cheap stand for my cuttlefish project. I need to put my 36"x16"x18" sump under astand and my 29G tank on top (~250lbs with rock). Here is what I came up with. Anyone think it own't hold? I looked at a few designs but they all seemed way over engineered. My focus is on easy and cheap, so I went with all 2x4s. The stand below can be made from seven (7) 2x4x8s (if I did my math correctly). This should be about $20 plus screws. I made the stand 48" long to give me a little extra space for my Ca Reactor. I am OK leaving the sump on the floor as it is water resistant and I don't need a top since I placed the braces so the bottom rim of the tank will always be on a 2x4 (glass tanks are supported by their edges, not the glass). I would build the four sides with screws and then screw the four sides together.