I've been having some troubles with my blackworms lately. I've been feeding this batch to my newts for about 2 weeks. They are starting to smell very gross and there are a lot of dead white worms clumped together. I've been thinking about breeding them, or at least take them out of the fridge. What do they eat? Can I breed them? Also, will the strange-smelling, old worms be accepted by my newts?