OK, so my 4 month old has been getting one exbreeder a week, but im worried that its way not enough for her. so, should i try a rat pup, or similar sized rat ? Or should i try two exbreederss( mice). If two mice, then do i put them in the tank at the same time, or wait for her to eat one, then drop it in ?? Thanks in advance for all of your help !!!!!!!!!!!!