i have made a few stands in what i guess is called 'raw industrial' style, like the interior of a Chipotle restaurant. i don't wish for my house to start looking (or smelling) like a Chipotle restaurant, but i like the effect in a small dose.
this one holds up a 65G Tall.
the next shot shows the corner joinery detail. these are galvanized framing connectors. the stand is rock-solid.
i have this tank all set up.r i have since added a painted and varnished plywood shelf that holds the canister filter and a couple of houseplants.