You can pick up a t-nut at your local hardware store, drill a hole into the end of a 2x2 piece of hardwood for the t-nut to fit into and mount that in the corner of the stand. Make the block about 3-4" long and drill the hole deep enough for a bolt to thread into the block. It's then just a matter of turning the bolt until you level up your tank. If you want a larger pad under the bolt, then place or epoxy your square of ply under the head of the bolt. I would suggest using at least a 3/8" bolt.
HEY! Your sleeves are wet.
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