I recently purchased 7 adult and 4 juvenile zebra obliquidens. I thought the 7 adults were all males since all showed some red on their bellies. Some very distinct and some faint but noticable. I figured the fain ones were subdominant males. The other day I found one holding a mouth full of eggs. She has been holding for three days now and still shows a faint red color on her belly. Has antone else ever experienced this? I dont think they have been given hormones like some are at a young age. The 7 adults are all between 4 and 5 inches long.