I recently bought a Craigslist mini-fridge for putting young highlanders in overnight until they get more mature. I figured mini-fridges are usually pretty crappy and would barely cool at all on the lowest setting. It turns out this one is very good at its job. I've been moving a thermometer around inside it to get a feel for the zones. The back and the floor get very cool, and it's about 42F there. The warmest area is inside the door which is about 48F. At higher settings I have no doubt it would become a freezer. I had intended not to go below 50F for this project, so I'm wondering how safe this will be for the various species:
They're all small, but if I can't use the full space of the fridge I won't be able to fit them all in.
Are there any species in this list that can definitely handle 42F nights? Are there any species that should definitely be kept closer to 48F? Are there any species that shouldn't go in the fridge at all, or will barely benefit from it?
Someday I may try installing my own thermometer switch or something. I've been considering ripping its guts out and just using the parts to cool my entire grow tent at night. I paid almost nothing for it, so I don't mind ruining it.
EDIT: I didn't mention my daytime temps. Anywhere from 72F to 80F, I'd say.