if my green anaconda is not hiding and she is not swimming...she is climbing. this girl will hang out and climb across the heighest parts of the tank. I think my atb's spend as much time on the ground as she does. i have an undertank heater but it is only a little over 1/4th of the tank. so this is not a thermo reason. i mean she is a good climber too...she climbes wires electical cord size and can hold her body with a few coils by her tail...i posted this pic before i think but you can see the crap she climbs. whats the deal here...maybe i will use a thick layer of cypres mulch when i replace this turf to see if she can burrow well too....maybe i have a super snake.