Help What is wrong with my plant

I have three autoflowers about 9 weeks old all of them are doing great except for this one. I have looked around and cant pin point what might be wrong with it. I water when needed based on the weight of the pot they are under 20/4 150hps with 2 24watt hot5 I fert with big bloom every 2 weeks.

i dont know what the problem is, but if you flush her with some good quality PH'd water with plenty of run off im sure it would help..

good luck!

Poor girls...

Looks like you are feeding them too much. Also, they look like they have been watered too much as well.

Lay off the nutes for a bit or cut it down at least.

Ok that is only one of the plants the poor things were already damaged by a nasty fungus fly infestation which I beat but it definitely inhibited their growth. They completed bounce back from that all yellow leaves fell off and I only had good growth from there on except none of my leaves were normal like 3 maybe 5 points. Whatever getting off track. If they are over watered and over fert is it a bad thing to flush them or should I do it and leave them outside as the sun will dry the pots out in hours where I live.

anyone else I don't know if I should flush them or are they already over watered