Overwintering Temps/strategies discussion

I want to overwinter two species in my fridge for a couple of months, T. sierrae and T. rivularis. The crisper drawers can be maintained at about 48 degrees F, but they are small and I can't fit a 'shoebox' sized box in them. The bottom shelf can be maintained at 42 degrees F, but I am afraid that is too cold. Is it? Also,should I not feed them before I overwinter them, and for how long? How small a container can I keep three or four animals in? How long do other people overwinter their animals for? How do you set up your containers (paper towel, dirt, and if dirt, how deep?) How often do you check on them and what do you look for? I would like to get various opinions on this and see what people do. Please feel free to add to the discussion no matter what species you work with. I'd also like to how people handle different species. I'm assuming people use tupperware-type containers with air holes, but if you use something else, please share! Thank you.

I haven't wintered any in the fridge, but I just want to put in my two cents worth for NOT starving them during their cold period. Neurergus still eat at near-freezing temperatures, and it seems counterproductive (for breeding) that some people don't feed them during this time. If it were me, I would at least offer them food occasionally and see what happens.

I would suggest taking the measurements of your crisper drawers and shop around for tupperware that would fit - larger than a deli cup, but smaller than a shoebox.

Hope you find a good solution!