I was using a red light all along.
Well, so far so good. Chicky doing well since yesterday.
Since the last two times were disaster I went overboard. Took all chicks out, changed color/shape of feeder waterer (though types they know how to use and verified when put back in) etc,, then put in new chick first, then others 1 and 2 at a time. All seems to be well. Figured if I did what I have done in the past to mix rodents, rabbits, livestock, etc and apply to give every chance. Paranoia seems to be helping (or just poor luck last 2 times) Thanks for all the advice.
Well, so far so good. Chicky doing well since yesterday.

