Hi All-I recently bought a wrought iron 55 gallon stand that I love. It allows you to put the same size tank in the bottom tier as the top bdcause the length and width are identical. I plan on putting a 33 gallon in the bottom section (essentially a shorter 55 gallon). Problem is the bottom elevates a paltry 3 inches off the ground. Wondering about water changes as I don't see how regular siphoning off the bottom can occur. Obviously, I could elevate it with some wood, but was wondering if anyone has had an issue along these lines and what you did? Thanks for your time.