Hi Liam....you can also use just the Powersun 100, it produces both heat and UVB. Be sure to follow the manufacturer's recommendation on distance, I believe it's 10 - 12 ". No red light and no compact. He may be acting sick because of eating too many mealworms , sometimes it will impact them, but sometimes they just don't want crickets because they prefer the mealies once they've had a taste of them. If he did eat too many of them he may even vomit. It also may be that he's eaten a cricket that was too large. From now on offer onlt the size that the other posters mentioned....no longer than the length between his eyes. If you suspect impaction, give him a bit of applesauce , veg. oil or canned pumpkin along with a shallow lukewarm soak. Stay with him to be sure he doesn't drown, and you can dribble a bit of water on his nose to see if he'll drink. Hopefully it's just an upset tummy.