I’ve been there! I personally think it’s best to feed at least twice a day. Might be better to try giving a small meal in the morning and a bigger one in the evening; they get to eat twice but are still hungry enough to forage and return later for their main food. You could also encourage...
I would continue food and water 24/7 until they’re fully feathered, or around 8 weeks old. They need all the food they can get while growing! After 8 weeks, you can take it out at night just fine :)