Decided to add more support/weight spread to the shelving unit with my tiny tanks.
Before & after:
Putting one on each shelf to better distribute the 26lbs per shelf for the 3gal tanks (rated for something like 270 per shelf) - including under the tank that's already there.
It's MDF that I primed, sealed twice and then coated with foamy rubber non-slip grippy bits.
No, I wouldn't do this with heavier tanks.
But I enjoy the new aesthetic of my three-tier tank rack with these new additions.
Gonna put a 45-F on top (or maybe a custom acrylic frag table I've got - 10" x 20" x 6" rimless).