Hi guys!
Get your temps up to 80 degrees. This will stimulate his metabolism and make him hungry. Your humidity is fine. 80% is ideal. Be sure to calcium/vita D3 powder every other feeding and multivitamin dust once a week. This will stimulate growth and keep him healthy. He looks fine, but will feel even better and will grow nice and strong for you if you do this
. Babies and juveniles should be fed daily, as they are going through their growth spurts. Adults generally eat every 2-3 days. Feed him every night as much as he'd like in 15 minutes or until full. They can eat about 1/3 to 1/2 their body size or more In one meal. Be sure his food is no bigger than the width between his eyes. Avoid anything with an exoskeleton such as mealworms or super worms. They cause intestinal impaction. Use cut up night crawlers, earth worms, crickets, or mini roaches. Do not feed him on the moss in case of accidental ingestion.
Yes, flipping over is a sign of stress. Twitching or tremors are signs of vitamin and mineral deficiencies.
Hope these pointers helps. Keep us posted.