I bought a 40gal front opening aquarium with a "bearded dragon kit" before bring home a baby beardie from PetSmart (apparently a mistake). He was fine the first evening not super active but at least seemed alert. Now fast forward to today, 3 full days of having him here, and he is not eating anything and only drank a little water when in a bath yesterday, and he's had his eyes closed for 2 days. I did some looking around post in here and have seen others say horrible things about PetSmart dragons (which has me scared for my beardie) and have said coil uvb bulbs hurt the dragons eye sight. The kit I bought came with a coil uvb bulb so that's what I have been using. After seeing enough stories about it I decided to turn off my uvb and he seemed to improve. He started squinting his eyes open, was moving around his basking spot and is sleeping in the corner of the tank last I checked 15 minutes ago. While I did see improvements after turning off the coil bulb, he also then got dark and his pattern was showing so he was unhappy. I just want to help him and I'm not positive where to go from here. What's actually a best practice for UVB lighting in a 36" length tank?