I have a Hermanns 6 months old and I'm new at this.
Be careful on feeding him. Only a certain amount each day with correct mineral additions. I thought I was stingy with the food, I was feeding him a palm size group of various greens each day. Well at 6 months I sent measurements and photos to the breeder who still has his brothers and sisters, well my "buddy" is 1/2 inch larger than the rest. I was feeding him TOO MUCH. Since I feed every other day usually with a very small snack on the off days( which he usually passes on.
He will be outside full time soon in a 8'x6' protected pen with a lock top and there he can be in grass, dirt and various plants growing he can eat. His hunger after a day outside is strong because of alot of movement and exercise which is good!
If yours is inside all the time watch out for food amounts and there is a benchmark on correct size somewhere for each 3 months measuring from the back to the front.
Get an outside pen ready for him because that is the only way to keep a Hermanns happy!
Terry
Link