No distress or black beard, no weight loss either. Although he does seem a bit small for his age. He's about 6 months old and only 12 inches currently. Lights are on 14 hours already, 6am-8pm. His tank is 40 gallons, long bulb is a 24w t5 ho 22inch reptisun. Basking bulb is a 75 watt on a dimmer...