As soon as I read Zilla I had to comment...Zilla's are no no's and we made that same mistake!!! When we got our Lokey he dropped a ton of weight and only ate 2-3 crickets a day...we got him the ReptiSun 10.0 bulb and he eats about 20-25 crickets a day! I would say your lighting is the biggest problem...we have Lokey in a 10 gallon tank with a Repti Sun 10.0 and a 100w house bulb and he is very happy
-Marisa
-Marisa