Spaghnum moss is a good substrate, as it holds a lot of moisture and the hatchlings can burrow into it for shelter. Provide a full spectrum fluorescent light with branches arranged so the young can bask within 6 of the lamp. A small spotlight can be added at one end of the cage to provide a heated basking area. Basilisks are tolerant of cooler temperatures and will do well with a nightly drop in temperature down to 65-70 degrees. The hatchlings should be fed small crickets, mealworms, waxworms, and other insects every day if they are to make optimum growth.
Young basilisks prefer to eat a number of small food items, rather than a few large ones.
A calcium supplement containing vitamin D3 should be lightly sprinkled on food items every other day or so to promote healthy bone growth. If the lips start to separate, or the hind legs to into spasm, or are held out stiffly, you need to supply more calcium and D3. A large shallow water pan or better yet, a drip system is an essential part of a basilisk cage, as they enjoy splashing in the water and often defecate in it. A water pan should be placed where it can easily be cleaned with a minimum of disturbance. They should be sprayed with water every day, both on the cage and on their heads.