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That got it. If you mean the one on the left that's yellowing just the slightest bit, it looks like it's simply exhausting the resources from its seed and wants a little bit of a feeding, possibly with something that includes just a bit of iron.

Other than that...actually, that looks like a really healthy set of seedlings and not something I'd be at all unhappy to see under the lights in the cellar at the moment by any means. I don't see any signs of disease or insect problems, if that's what you're asking.

I do feed things a little bit indoors before planting outside (some do, some don't) just with plain Miracle Gro at about 1/8th normal dose since the flats don't have drainage in my case. So I use the 1 quart measurement for 2 gallons of water, maybe every third time I bottom-water the flats. No more. Many things only get fed once or twice that little bit before they go outside and get planted in May.

But it's your choice if you want to or not.

Ready to be planted outside, and they should take off, they are starting to outgrow their nursery. Just be careful introducing them to direct sun and freezing nights, but they will be better off outside soon.

Many thanks to the both of you! New gardener here. Starting from seed is proving difficult for me so I appreciate you taking the time!

NP. If that's "difficult," then you're doing an amazing job so far. They look great.

If nobody detailed hardening off for you yet--

When hardening off, just move 'em into shade, then shift into sunlight a little at a time each day (it's easier than moving them in and out, in and out, but you can do that if you want as well) Make sure to bring them in if temperatures really get cold, or you get a really heavy rain, though. And don't be afraid to back them into shade if they show any signs of sunburn or just don't seem happy. It's better to wait an extra day or three than accidentally lose something...

Some things adjust effortlessly (marigolds, brassicas, zinnias) with only a few days to get used to things. Most things need some time.

You’re so sweet to take the extra step thank you!!

my peas, kale and bunching onions have done well but my broccoli and basil for some reason have been terrible. Second time trying basil. I didn’t think it was that hard. Any tips?

Morpheuspa I have started gardening off my pictured flat for an arched trellis. Fingers crossed

Not off the top of my head for basil, it's usually pretty easy. Don't keep the soil too wet when germinating or initially growing, though, it does tend to rot.

But I do have a cheat for that. :-) Go to the store, buy the basil in the bag that still has the roots on it. Plant it. Cut it back so those little remaining roots aren't overly-stressed (they don't have much). It'll root all by itself.

Can't find the stuff with roots? Just get stemmed basil. Stick the stem in soil, cut back to about 2 leaves. Keep in bright, indirect light, and the soil damp. The basil should root into a new plant in about 2 weeks in fairly warm conditions.

Harden off like any other plant when growth resumes.

Basil needs more heat to germinate than the other seeds you list. I start it on top of a central heating boiler and move elsewhere the moment it germinates. Which it goes very fast.

Can’t explain the broccoli problem. It should be pretty much the same as kale.