Are my seedlings healthy? Tomatoes and Cucumbers

Hi everyone!

I started my tomatoes and cucumber seeds indoors 7-8 weeks back. They are about a few inches tall now and stocky because I kept them under grow lights. I am going to plant them outside in about 2 weeks, around April 20th. I am in Zone 7B.

Some of the bottom leave are yellowing on both the tomatoes and the cucumbers seedlings. is that normal? also the edges of some of the cucumber leaves are yellowing. What might be causing this. I wanter them as needed and feed them with fish emulsion fertilizer once a week. Please take a look at the images and let me know if something isnt looking right. Thanks!

The very bottom leaves, the so-called "seed leaves" aren't relevant. They die back once the plant gets going. But otherwise on the true leaves, there's more yellow than I would want to see. I would try potting them up into the next size, and fertilizing a little more. I suspect that for the size the plant is now vs. the pot they're in, they're using up the available nitrogen rapidly.

Separately, this isn't what you asked, but have you planted out in April in your zone in prior years? You might know this works fine. Only asking because I'm in Zone 8b, and I never plant out tomatoes, squash, or basil until after memorial day.

Hi Deborah, thanks for your reply.

I guess ill have to up on size. This is my first year planting, ever! based on my last frost date its safe to plant mid April. Again, i only know so much as its my first year and im still learning. Let me know if you have any more suggestions on what I can do.

Thanks