For large vessels only ponds and custom, overbuilt acrylics for me. I've had too many failures over the years plus more money is needed in clean up and repairs and loss of life than in building it like a rock the first time. I've seen this happen from metal halide lights over the braces on glass and acrylic tanks. LED or non UV flourescents are the only bulbs that should be touching or close to the lid of your tank. Most other bulbs make too much heat and can warp your braces. If glass it can heat them up, then if a fish splashes too much water on warm glass cracks can form with rapid change in temperature.
This is a nightmare. Buy or build overbuilt, level it before. Nothing large on upper floors like said before.