I think he is failing to thrive. I'll give him/her another day, and if there is no improvement, I will cull it.
I held the chick for awhile earlier and it is also extremely light compared to the others. The others are also noticeably larger in size on day three, he's the same as day one.
The others are all little Roadrunners! It's like a Nascar Chick race in the Brooder!
***edit***
I have dipped it's beak in the waterer, so it does know where the water is. I have also placed a small pile of crumbles in front of it. No go there either.....
Ugh, It's like when my two human children were newborns! Worry over every-little-thing!!!