You shouldn't be trying to feed it grit. A very very watery chick starter in a dropper is fine, with a pinch of sugar, and a drop of Rooster Booster, or Poly ViSol without iron. They're identical products, and work great. Many have suggested electrolytes, but I've found this mixture works fine without them. Just a drop or two of the mixture every hour and a half, to a couple hours apart is how I have done it. Don't worry about the feed as much as keeping it hydrated, but don't skip adding a little feed to the mixture, and be sure to add the little drop of the vitamin along with just a little pinch of sugar when you make the mixture. You will be able to tell a bit about how often to "feed" it by seeing how it responds after a couple of feedings. Don't worry about it sleeping so much. That's normal, until it gets stable. Don't worry about it being smaller. Mine eventually caught up with their hatch mates. When mine were stable, and ready to go with their hatch mates, they were still smaller, but I took a tall, see through (sheer, not clear)Tupperware container, and put it in that, then set it in the brooder with the others. After a day of them getting used to seeing each other, but not being able to pick on it, I put the smaller one in with the others. A couple times I've had to put the little one back in the Tupperware and wait, then try introducing it again. I hope your chick makes it.
