OK, found these in the tank this morning, they were fed last night cut up trout and pinkies, and at first I thought it was the trout that I had found regurgetated...but they are jellybeans..

Notice the one in the middle has a darker area, a few did so I decided to take a closer look.... now bear in mind that this is probably about 5mm so really hard to get a good pic.... but one tiny snake

Now for the really odd thing, this is a tank of females, they havent had a male in with them for over a year!!