I'm trying to figure out why my 2 dumpy treefrogs are brown. My tank is 3ft. long x 2ft. wide x 3ft. tall. The top is a screen lid and the sides have a screen door insert. I have an undertank heater and during the day the temp. stays around 75 degrees and at night around 65 degrees. They get fresh water every day. They have two water bowls and one other water bowl that has a bubbler in it. Lots of hiding places and plants to climb on (fake and 1 live). When I get them out of their cage they turn green. The boy (Jade) turns lime green and the girl (Angel) turns blue/green. Can anyone tell me why they do that? Is the temp. wrong? Are they cold? When I get them out they always feel cold and after I hold them and they warm up that is when they change colors. What should I do?

