Ponds usually have snapping turtles, at least around here they do and I imagine Texas is about the same. They will kill your little ones in a heartbeat as an appetizer before they get the big ones. Then the snakes. Where there is water there are snakes. I lost a 4-week old one to a king snake that had gotten in the pen because I stupidly left the door open. You've got bigger and badder snakes down there than we do.When are you thinking for both sets?
How old for creek?
How old for pond? (By pond I mean all day- not just a little 10 min swim).