got a kindof field herpin story

Well Me and my wife are watching my buddies collection since he is in Peru for 2 weeks. He built a green house that is attached to his house, and there are tons of critters that seem to just appear in this green house. He has a nice sized goldfish pond that has a perfect window view of the front yard. Today while we were over there we saw the culprit that has been deducting his beautiful goldfish collection. Sitting on a floating hyacinth was a 18 inch or so juevinile Red bellied watersnake. He is quite nice looking and if I can catch the little bugger tomorrow I will post pics. He eluded us today but I have a feelin we will have better luck tomorrow.