Pretty much what he said.
But I doubt you wanna keep either of those in a large cricket keeper, they get too big. If you can do a 20 gal I would recommend a pacman or a female pixie. 10 gallon would work too but for a pixie I would do a 20.
Depending on where you live dictates whether your gonna need a headpad or not. If you live anywhere but Florida your probably going to need to either bump your house heater up during the winter or get an in-room heater. But you wont necessary need a heat pad for those options.
Me= No expert, just learning myself.