im sorry to say but this chameleon (due to the bubles in his mouth) has an Upper respitory infection....and he needs to see a vet ASAP. foaming or bubles is not good.but other then that hes beautiful. he also looks rather frail...and the 2nd pic looks like he has mucus coming out of his nostril. Does he have these bubles all the time?reason why i was so strait up is because of this photo wich is indeed a cham with a URI...the last picture and this are very similar...both bubles on back edges of jaw
he doesnt seem to ever be or act sick. I dont understand saying hes frail he is so fat, and eats about 5 crickets and 5 huge superworms a day. I noticed the more worms he eats the more slimy his mouth gets. I had him on just worms for a while and when I noticed I switched back to crickets being the main staple and he hardley never has any problems. Never discharge from his nose his passage is always clear and he seems to breathe quite fine. You sure made a quick diagnosis with 4 photos.
well i was quick to judge because of the bubles ....that photo of him and the one i posted wich is one confermed with a uri....are very similar....he may have it he may not...but the last photograph looks very much like it. but anyways hes very beautiful.
Have you has him checked for parasites lately? They can make them eat and not put on weight. His legs look very thin. I agree that a vet visit might be in order. Once these guys get sick they go down fast and I'm sure you don't want anything to happen to this grogeous cham.