On Saturday the 14th at our local reptile show, I purchased a USED (out of the box and missing all packing materials) exo-terra small waterfall feature. I wasn't in the mood to get any more animals, besides I have NO MORE room. I was told the reason it was for sale was because the vendor decided to upgrade his gecko tank and wanted a bigger one. Never thinking twice about where it was before, I thought a waterfall would look nice in my tomato frog tank and provide a little extra humidity. I set up the unit, got it running and it looked nice. Overnight it somehow stopped running properly and all the water had soaked my substrate almost to a mud state. As I was about to open the tank to remove it, I noticed an added occupant in the cage!! I was shocked to say the least!! Here is what I found: After several phone calls to some friends that have geckos (Love the Baruu ) and searching the internet endlessly, I have determined it is a Dwarf Yellow Headed Gecko. Not sure if it's a male or not (assuming more colorful = male, drab color = female). I am calling it Lygos in reference to its Latin name. Have seen that it will only get 3.5 to 4 inches long and is mainly arboreal. Must be nearly full grown already. I have seen it eat small crickets and lapped up some gecko diet I bought and mixed with water to form a paste. (side note: the mix smells really nice and fruity ) Hoping to enjoy it for a while. Any info will be appreciated.