Hey everyone, first time grower here. I’m currently running 3 purp lemonade autos from fast buds and they are right around 11 days old. I’m using a mix of fox farm happy frog and ocean forest in 5 gallon fabric pots. Still haven’t mixed anything in the soil just simply planted into the pot and kept everything moist. Everything has been going pretty well so far but when I got home from work today I noticed one of the plants is starting to show some signs of what I believe to be either a nutrient toxicity or overwatering. What do you guys think my issue could be? Any tips or advice would be appreciated.

The first two photos are of the plants showing signs of a problem. The other two are looking good in my opinion but please do let me know if you guys disagree. Thanks again!