I've had my geckos for quite awhile, maybe a year now. When I first got them from the pet store, they were probably about 5 inches 4-5 inches long not including the tail, just from the butt to their nose. I feed them about 30 crickets a week, and I've been watching their tails; there hasn't been any growth. I'm pretty sure the female is pregnant due to her bulkiness and the egg shapes in her stomach, so I would assume she has an excuse as to why the fat isn't going to her tail. The male is who I'm concerned about. I know he eats, I've seen him eat, but his tail isn't growing any really. Is he not eating enough? Is he only eating a few and letting the female eat the rest since she is pregnant? I honestly have no idea what is going on with his tail. If anybody knows why their tails haven't gotten fatter, let me know.