Help me diagnose my plant problems! Thanks!

[Mike7]

Okay, so I left my friend in charge of my plants when i went on vacation from when they were 3 weeks old to when they were 5 weeks old. They have some yellow spots on them that I think may be nutrient burning, as well as a couple big white spots that I hope is not mold. The water was not changed for the entire 2 weeks, and I know it is supposed to be changed every week.Let me know what you guys think, thanks!


I also have 2 pictures of my biggest/healthiest plant, at 5.5 weeks. It seems pretty small, dont you guys think??

 

[conepuller2299]

ONE problem is bugs, somthings been munching on a few of your leaves
as for other issues i dont have any hydro experience, but they do have a lil bug problem

 

[ginjawarrior]

Okay, so I left my friend in charge of my plants when i went on vacation from when they were 3 weeks old to when they were 5 weeks old. They have some yellow spots on them that I think may be nutrient burning, as well as a couple big white spots that I hope is not mold. The water was not changed for the entire 2 weeks, and I know it is supposed to be changed every week.Let me know what you guys think, thanks!


I also have 2 pictures of my biggest/healthiest plant, at 5.5 weeks. It seems pretty small, dont you guys think??

might be bugs or it could just be alittle bit of nutes/ water split on leaves i've had similar when i watered early in the day i think the water on leaves and burns it

 

[Mike7]

might be bugs or it could just be alittle bit of nutes/ water split on leaves i've had similar when i watered early in the day i think the water on leaves and burns it

Hmm, yea that's another possibility. What about those white spots, what are those??