I read another thread about someone having trouble feeding a 2 month old. My little spider is about 6 weeks old and has only had one meal about a week ago. If he doesn't take a F/T mouse this week I'm also considering live pinkie rats. Since they're so young can you purchase more than one and they'll stay alive? Or is it best to just get one? I've never had to deal with pinkie anything so any input will help. THX