Well I had a beautiful 90 reef, but i tore it down, as it wasnt a drilled tank, fish were growing, so they got condensed to the 220. Im re using alot of the inner workings of that tank on this one, so before i even get it upstairs, the flooring is getting replaced. Im not playing this time. Room will be painted, and new flooring, before i even move the tank out of the basement. The flooring weve been putting in the rest of the house is the luxury vinyl plank flooring. The only concern i have is the weight of the tank on it, but that should be fine shouldnt it? id assume better than the carpet the old 90 was on. Flooring will come out, and it will go down directly on plywood subfloor. I despise moving tanks so im not taking any chances.