Oh well I am setting up a 510 gallon tank, do you think 1/8 thick steel would work and 1x1 tubes?
The tubes on my stand are 3/16 and typically Lukas over engineers things. I don't know enough about the material to answer whether 1/8th at 1 x 1 would suffice.
My previous tank was a commercially produced 300 gallon marineland. The stand literally had six 3/4 inch plywood supports, about 6 inches in width, located around the perimeter, and it held over 3000 lbs.