You will need to protect the glass if this tank will be at or near knee level.
You build a stand or buy a stand and build the bar around it. The space between the tank and the bar can be covered by molding. You will need space to service the tank and all the equipment it takes to run the system.
Fish tanks give off substantial amounts of moisture. You will need to protect the wood on the backside of the bar or it will mildew, mold and potentially rot.
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