if you have a solid top on your stand that tank sits on screw teh power bottom to the underside of that. If the tank breaks water will gush down the sides and soak anything attached to those walls.
if you have a reef controller you can rig up some float switches to automatically kill power to the return pump and power heads and heaters if the water level drops to far in the sump or display. Redundancies should be in place for a system like this and it should be tested monthly.
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