Try live mouse or rat pinks, or use f/t pinks and heat them up with a blow dryer and wiggle them around with a pair of tongs. If they seem interested, that's a good sign. If they don't take the f/t out of the tongs, leave it in the tub overnight. I usually leave them close to the heat source so they don't get ice cold. Sometimes they will only eat when they are sure nothing will disturb them. It's very important that they can see the heat signature on the food. I would only try to feed every 5 days and don't disturb them at all unless you need to clean the enclosure, or change the water (are they drinking water?). If hatchlings go more than 4 weeks without eating, you may want to assist feed, although it is very stressful, so try all other options first. You may also want to put crinkled up newspaper all over their tubs to make them feel more safe. You can also check out the caresheets on this site. I know i have seen some on feeding issues. Good luck!