Thanks everyone for the condolences. I mostly wanted to post to remind everyone to check out ther females. I find that the sex problem typically isn't the revers of my problem, since once you see a pene, it never goes away. I think some males as babies just have very small penes, and can possibly get missed when popped at a young age. I will definitely be rechecking all of my animals from now on once they hit about 400 grams.