The black beard could be anything from pissed off, stressed out, or wanting a mate.
If you could answer a few more questions i might and other too, may be able to help you better.
What size cage?
What lights are you using both for heat and UVB?
What substrate?
What is all the food you are using with him, salads, crick, mealies, silks, things like that.
What is the temps cool and hot side?
Things like that will help us out alot better.
Jamie
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1.2 Bearded dragons (Login, Raven, & Jean Grey) 1.1.1 Corn snakes(Havoc,Sable, & Kink0 1.5 Leo's (Psyloke (Lucky-male) Speedball, Domino, Rouge, Siren, Elektra) 1.0 Veiled Chams (Neo), 0.1 Rose Hair T. (Night Crawler) 0.0.3 Crested Geckos (Shiva, Storm, Beast) 0.2 Kenyan Sand Boas (Tigra & Cloak)
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