I have a Red Sea Max 130d which will supposedly weigh 440 pounds when filled with water and live rock. The floor it is going on is not level, it is a cement basement floor that is wavy and uneven. If I use self leveling compound to even it out, will the weight of the tank be too much for the dried self leveling compound? Or can it handle that much pressure easily? Should I put self leveling compound down, let it dry, and then put another layer of some kind of support? Also I have a 20 gallon in the vicinity of where this tank will go, and it is slightly uneven, on an all wood stand but not perfectly level. How long before that causes a catastrophe and in a tank that small is it likely that it would only happen very gradually? Lastly I don't even think I'm going to keep an octopus in this new tank but I am asking this here because people are helpful on this forum! The physics of what will actually cause a tank to crack and explode are beyond me. Maybe people on this forum understand them well enough to give advice? Thanks very much for any help.