Yellowing, drooping leaves, need help

400w HID just switched to HPS two days ago. Plant is 45 days old, fox farm ocean forest soil, PH maintained around 7 in and out. 2 gal smart pots, watered every 3-5 days, temps kind of high during day sometimes but checked every hour...80-81 at the highest no more than an hour. Usual Average 68-75 degrees F during the day, 60-68 degrees F at night. No nutes, just fresh soil and PHed water. Unfortunately i use tap water due to budget issues. The yellowing started about a week ago, and now everything is drooping cupped down as you can see. I am thinking it is excess salt and they have locked out... but I have never had a problem like this before... the city I used to live in had very clean tap water. It is very hard where i am at now. Any advice would be sincerely appreciated...as I was planning on switching to flower in about two weeks (I have 6 of them, one has good color, but 4 have mild yellowing, and all six plants have the same leaves cupping down.) Thanks!

look good to me, for now. maybe they want to be fed, real food, like organic chit stuff, organicare, etc.that soil will not support a full cycle btw. they are not starving for food this moment, but will soon. they are needing some other resources checked though maybe

DeadFace said:

400w HID just switched to HPS two days ago. Plant is 45 days old, fox farm ocean forest soil, PH maintained around 7 in and out. 2 gal smart pots, watered every 3-5 days, temps kind of high during day sometimes but checked every hour...80-81 at the highest no more than an hour. Usual Average 68-75 degrees F during the day, 60-68 degrees F at night. No nutes, just fresh soil and PHed water. Unfortunately i use tap water due to budget issues. The yellowing started about a week ago, and now everything is drooping cupped down as you can see. I am thinking it is excess salt and they have locked out... but I have never had a problem like this before... the city I used to live in had very clean tap water. It is very hard where i am at now. Any advice would be sincerely appreciated...as I was planning on switching to flower in about two weeks (I have 6 of them, one has good color, but 4 have mild yellowing, and all six plants have the same leaves cupping down.) Thanks!

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Well at 45 days in two gallon pots those guys are getting hungry they have simply used up all nutrients in the soil. The one that has good color is more than likely a pheno that's eats slower or less than others ( very common) either repot or start feeding also 7 for ph is high ph your water to about 6.5 and then water. Also what's the RH where you grow ?

forgot to mention, nice training, I noticed the thumb stalks.....

Ok so it doesn't look like too much salt or lockout? I was thinkin the water was too hard...but that's actually good, I don't mind re potting as opposed to having to worry about buying water every time. RH is low.. 40% but it gets too hot when I get it up. So it's kind of a catch22. Humidity goes up to about 55% but temps hit 80 at that point. (Thanks for the compliment chemphlegm!)