My male juvenile het. pied has been yawning a lot. I checked his mouth for rot or RI. The mouth was nice and pink, no redness or mucus. I keep 2 hides, a log, and 2 plastic plants with cypress mulch in a 20 gal. long glass tank. The temps and humidity are always constant and precise on the cool and hot side. I also noticed that he was clicking when he exhaled. It was gone a couple hours later. He yawns about 3 times every time I handle him. He's a little more than a foot long and an inch at the thickest part of his body. Weight is unknown.