Hey guys, I am not good at sexing chams yet. I have 4 month old "female" ambilombe. I am not sure because of her stripes and color. She is sometimes the peach/brown color, but more often has some sort of pattern. Sometime I see light reds and even more often and stronger yellow. Her sister (couple days apart) is half her size and never shows pattern or color like this one. I cannot tell if this is the buldge I am supposed to be looking at, but I tried to get the best pics of the vent area and some of the color/pattern. She is also much more "confident" and have a much stronger feeding response than her sister. Quick to flair up too.