Ant farm 11*6*2cm

I've modeled a small ant farm, measuring 11cm long, 6 wide and 2 high. The slot for the glass measures 10.7cm long, 5.7cm wide and 1.5mm high. There's also the cover, the central hole is to put a screw and the second one at the end is to fill the reserve, it's 2mm. For the water reserve, you'll need to cut a sponge to size, ideally a florist's sponge. The exit to connect to a hunting area measures 8mm in diameter. I'm a beginner in modeling, so everything may n