Those are fine. BTW what kind of onions are those? I've never seen onion seedlings that look like that. I start seeds in trays quite often in the GH. They can't remain in there as long as they could in a plug tray. I just lift a section of soil about 2 or 3 sq inches and pull apart the seedlings then transplant them into cell packs. I'll let them grow in the cell packs for a while then transfer them to the garden. Pulling sections of soil containing seedlings is easier for me then trying to prick out individual seedlings when there's that many. You will most likely end up with way more then you are going to use. That drives me crazy because I hate to toss the extras in the compost pile but sometimes ya just have to. lol
Karyn

dang, you're right. Thats lettuce. the onions are to the left. Sorry.

mailmann22 - where did you get your trays? I just ordered some for the first time thi syear from Harris Seeds. So far, so good, my tomatoes have come up great. Have you used them in the past?

This is the first time I tried using the rows and not the individual cells. The trays I got from Johnny's Seeds.