Holy cr*p, that's 2x4 construction. You can rock an elephant on there. If everything is level and square, you ahouldn't have any issues with the stand. I think 1 1/2 inch is a high wave and may adjust that based on what corals you're keeping. Also, that's a lot of water your tank is holding back. Just a thought, I have mine on a 72G with 1/2" wave.
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