I've had Rango for about 4 months now, 40 gallon tank, cool side of about 67-72 warm side 94-98 with a basking of 104-107. Has uvb bulb and eats as many crickets a day as he is willing. I offer greens but he doesn't take him. I was told when I got him he was 3 months so that should make him 7 months but online 7 month old look MUCH bigger. Any ideas of how old he is?