When I built the stand for my 40b reef, I made it really tall... I'm 6'4" and I always hated having to get down in the floor to look at tanks. Also made plenty of room underneath for my stacked 20l refugium and sump.
"What, exactly, is the internet? Basically it is a global network exchanging digitized data in such a way that any computer, anywhere, that is equipped with a device called a 'modem', can make a noise like a duck choking on a kazoo." - Dave Barry