If hes healthy and drinking he should be fine ive heard of cases on the forums where some chams take time to get comfortable(some take really long)...just a suggestion
Welcome to the forums:)
For the female it may sound like a case like mouth rot..pics would of helped ...as for the new one you should give him sometime to relax and get comfortable to his new home ...how old is he...
No joke when i bought mine from hyper i was like theres no way i can care for them they were like ants ....but it comes easy after you get the hang of it