Larger older RS tank is a no go. It's beautiful, but the stand is just too flimsy. And the unsupported front pane added to the problem with more downward sheer force. It's just a poorly designed tank/stand, no need to sugarcoat it. I think I've seen 4 or 5 Redsea leaks just in the local reefing community in the past year. These were thriving tanks that needed to be broken down immediately because of RS leak/seam issues. If you have a smaller RS tank, you may be fine as the span is not as big of an issue as a bigger tank.