I always use Sav-A-Chick probiotics and electrolytes for the first 3 days of life, minimum. Fragile birds (peafowl, turkeys) get them for the first week. They come in packets designed for 1 gallon of water and can be used together. However, you don't need to mic the entire gallon at the same time. Just eyeball the amount you need for the amount of water being used. The electrolytes are colored orange and the correct amount will make the water a light orange color.
I don't think I would ferment medicated feed, and I really wouldn't say fermented feed is something that would benefit chicks enough to be worth it. They're so little the difference in consumption would be negligable, and the Sav-A-Chick probiotics will mimic the positive effects of fermented feed anyways.
Ok, thank you. I have both the electrolyte and probiotic packets on hand. My peachicks just hatched today. When can I expect to see them start drinking and eating? They are still in the hatcher. But I was thinking of moving them to the brooder tonight. And I will show them where the food and water is.