I use these for growing some of mine out as well. As you said, not permanent! I haven't had the rust issue on the magnets and mine haven't fallen out. I set up a velcro strip over the door so my geckos cannot accidentally "open" the door and get out. You make great points here - I've chucked out a few and still have a bunch waiting to be used. They're inexpensive and functional for grow outs...keep up the good work! 🙌
I use a single window screen retainer at the top secured with a rust proof screw to hold the door closed. I also attach screening to the back with hot glue to close up the big holes in the back to keep smaller geckos and bugs in.
