As long as you don't have a huge jump in fatalities, it should be ok. *pats*
Really, I'd never jar 3 week-olds ever. They need the stability of a big heated tank and a filter, and it'll be sooo much less of a pain for you. In a month or so, start consider jarring!
Yeah. Thanks.
I'm learning daily that the best way to deal with it is to just let nature take its course. As long as I'm doing the best I can with religious water change and observing for sickness, I can get through.

I will remember your advice. Many thanks!