Quote Originally Posted by aalomon View Post
I may be wrong, but my understanding is that a problem with the male causes infertile eggs and a problem with the female causes slugs. There are a ton of different things that can cause slugs, but stress or incorrect thermal gradient are the ones that come to mind.

I feel your pain though. I had 2 females slug out after a move. They had been building over the move and ovulated at the new house. The next clutch was from a female who developed follicles after the move. 6 perfect eggs.
I made a move with my collection this season. I had a female lay an entire clutch if slugs, seven to be exact. It was sad, but I agree that there are multiple factors to consider. I've also heard from other breeders they had slugs more this season than before. The common factor, we all moved our collection from one location to another.