I shimmed my stand for my 210 when I had it cause my floor slopes as well. Once shims are in place the weight of the filled tank won't let them budge lol.
Finally after what seems like forever there is finally water in my new tank.
Today marks day one in the cycling process.
Hopefully in the next 6 weeks I will be able to start transferring my corals from my current tank into the new one .
Next I have to hook up gfo/ carbon reactor and some cable management