Awesome DIY, thanks! I've been wanting to do this for a while, and it makes it so easy when you've got every step explained so clearly.

One thing I might add: I saw this when I went to a local breeder's house to buy some babies recently. She had cut about a 3 inch square hole in the front of the tubs (opposite the large square screen) very close to the floor, then she stuck magnet strips around the edge of the hole. She cut a piece of plastic (from the larger hole piece) that is basically the size of the hole plus the width of the magnet strips (about 1/2" more on each side) and stuck magnet strips on that piece to match. Now she has a little door on the front of each tub that she uses to exchange food and water dishes. She just pops it off, then it sticks right back with the magnets. It's pretty strong, so I doubt a crestie could push it off. I haven't done this myself, so couldn't attest to it. But she's been breeding for several years and claims it works great for all sizes... I just thought that was a very cool idea...

Thanks again for the great post!

Eddie