2 white widows and 1 bubba kush are sick

[Hawaii1]

I have 2 white widows i grew from seed that I ordered through this site . they are veg now for 2 months . All of a sudden they not doing good . Might have watered too much when I watered to run off ? Is that ok? I feed once a week and water in between but only when dry. Did I burn them with nutrients ? Or get a bug or pests . But only these 2 plants are affected.
Also I have a bubba kush that has been looking droopy and hasn’t dried out from the last watering 6 days ago. Did I over water or burn from nutrients

I attached the pictures
Mahalo for your help!

[Randy_Marsh]

Mold ? Humidity ? Do you have a fan ?

[Hawaii1]

Yes fans on . I think I over watered and it never dried out fast enough. Do you water to run off every time?

[Randy_Marsh]

No really

[Hawaii1]

Now they are looking better no spots on the leaves or burns but they are yellowish color and canoeing? Anything can do to make the leaves stop canoeing? Thanks again!

[Hawaii1]