So I'm having a stand built for my Oceanic 58g. I'm sure it'll be "overbuilt". I'm a little concerned about the weight, but what are you gonna do? OK, so on to the questions. First, do I need a piece of plywood across the top as a base? Should I not? Pros and cons to each? Second....how tall should I have the stand made? The tank is 21" tall. I was thinking 36" tall for the stand. Do you guys think that's too tall? I just need the room in the sump area for my skimmer. It's 21" tall and it needs to sit in no more than 6" of water. So with the room to take the cup off I'd need about 29" of room. So if the bottom frame of the stand is a 2x4, that would account for 4" plus the thickness of the plywood on top of it(so roughly 5" already lost). So that would leave me with about 31" of room if my math is right, lol....and of course if I'm picturing it correctly. Final question.....would one support connecting the frame at the top be enough? I guess it's the "cross bar" at the top of the frame. I've seen some use them, some say that they aren't neccessary. What do you guys think?