You have purchased a decorative plank, that is made up of four boards glued together edge to edge. It's not plywood, it's not particularly strong or stable, and it's essentially just a decorative thing, a way to produce a wide plank for shelving or other purposes without costing as much as an actual natural plank that wide. It's a workaround to get a 12-inch plank out of a 4-inch tree.
But...the picture seems to show that the corners, or perhaps the entire end pieces, project upwards above the top surface of that "stand". So your new piece of wood is supported only at the corners or at most at each end. If the support is stable and strong, that can work with an all-glass tank. Acrylic? I dunno. We need
wednesday13
to weigh in.
But seriously...bite the bullet and get or make a proper stand. You have some nice tanks that are standing on stacks of decorative garbage right now. You're throwing good money after bad at this point, and have been for awhile. The thread's been going now since last fall; how much longer can your luck hold out?
