lockrookie's 180g (build #3)

[-=James=-]

I have mine setup exactly the same as your drawing. 2 cross braces on both sides of the overflow is enough.

Im guessing youre doing a bean overflow. I would put the 2 standpipes higher to have the top caps near the water surface. You'll need to put an airline on one of the standpipes.

If I was to do it over, I would build an external or coast to coast overflow instead of the center internal overflow to get more tank space to play with.