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My lux at 12 inch from canopy to fixtures is around 50-60k. Ppms are about 900-1000. Ph is around 5.9 to 6.2. My leaf surface temperature is around 77°f with ambient temp of 79°f - 80°f and a RH of 50-45%. I feed every other watering since the "flush" flush that brought on the yellowing.

The reason behind the deficiency was a double flush. I was under the assumption I was dealing with a lockout and wanted to start fresh. 2 days later bam. They were in serious need of nutes.

Pics of them currently

I have 6 mars hydro ts1000s. Spaced about 10-12 inches apart. As of now I have 8 plants and the fixtures are about 12-15 inches away from the canopy. I am 4 and a half weeks into flower and I was wondering a few things... Should I move them closer? What should my ambient and leaf surface temps...

So I have a room set up that is 4x6. 6mil diamond mylar on 3 sides 4ft high.. I have 3 mars hydro ts1000s long ways in the room about 6-10inch between the fixtures. I'm trying to fit 6 under them. Would this be enough to flower?

I'm wondering if anyone has tried adding a tiny amount of rooting hormone when watering plants when they are in the seedling stage and early veg? To aid in root development.

I'm glad to see such a response from everyone.

Im wondering if I can use things around the garden or house that can be used to lower and/or raise the PH of water?

I'm wondering if anyone has any input on the differences between spring and tap water? I'm thinking of going with spring water for my next grow.

Any that you would recommend?

I'm using fox farm ocean forest. As of right now I don't have a ph pen.

Flushed them and now they are 10x worse.

I haven't tested pH but I use regular tap water. And rx green solution bloom nutes. My temps stay about 73-75 and humidity about 40-46

Any ideas on what might be going on here anyone? I've been flowering for a few weeks but now my plants leafs are getting badly damaged and the plants are not using up any water at all.

At least I have it narrowed down a bit. Thank you so much.

I have a 400 watt hps at 16in away from top of plants and it's a constant 70 degrees and 50 percent humidity could this be moisture stress?

I'm setting up my 400w mh soon but this shit happed lol. What soil should I use?

I watered my plants last night because soil was dry to first knuckle... the leaves looked fine, maybe a little dry. but when I woke up they looked like this. The first pic is a girl scout cookie. And the other 2 are sour diesel. Using fox farm ocean forest. 5gal pots. 95 watt hydro farm high...

Awesome. Will do. I've been noticing the color change of leaves. And I'm gonna give 10 days for flushing. That should be good I believe.

I'm gonna get a 100x microscope tomorrow. Any ideas where to get one besides online?