4 month old beardie suddenly turned aggressive?

[slashgash]

Ive had Reptar and Puff for about a month now. In the beginning, they were both so sweet. I could pick them up, cuddle with them, and I did everyday. Last week, seemingly out of nowhere, Reptar turned extremely aggressive. If I even put my hand near his tank he starts hisssing, puffing, gaping, and trying to bite. I try putting on a glove and putting my hand in his tank and he goes nuts trying to bite me. I cant pick him up anymore because he wont let me near him. Puff is still the same sweet dragon she's always been. I dont know whats going on with Reptar. Anyone have any suggestions?

 

[covedweller]

r they housed together? if not, can they see each other?

 

[slashgash]

No, they are housed separately and they are not in view of each other.