The reason I ask is I got around 6 feeders and set them up in a nice little pad...10 gal tank, wheel, good food, drink and nice aspen bedding...Fed off four and was going to feed my girls last night and to my surprise they were curled up dead...Still had food and water and the temp was in the low 60's not bad at all...My paranoid side when to C02 poisoning for some reason so I moved my co2 detector down and it was all safe

Any thought on why they passed? Is basement 60 degree temps too cold?