Just started the bloom light cycle about two weeks ago. Today when my plants were taken out, I noticed some yellowing on the bottom growth of my plants.
Actually I think they look good. The light color is from rapid growth and since you mentioned you recently flipped (thank you for that information) I’d say that’s what’s going on. You must have them happy
they should fill in green in a couple days. The chlorophyll can’t catch up to the growing tops lol.