Weird plant problems

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Growman1010

New Member

• Apr 22, 2018

• #1

Okay so I’m running a 1000w mh in a 4x4 grow space. Temps have been a constant 85 degrees Fahrenheit 40 percent humidity. I haven’t used any nutes yet just started in miracle grow dirt then moved to a professional potting mix. Now I’m having problems, some are yellow, curly, shiny, it’s just weird.

 

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Aolelon

Well-Known Member

• Apr 23, 2018

• #2

Heat stress looks like

 

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Growman1010

New Member

• Apr 23, 2018

• #3

Light is about 18 inches away running at 50% so roughly 500w I just moved the light up about 3 feet so will see what happens. I’m just worried about nutes, if I need to or not. I have been reading about N toxicity, maybe that is a possibility, I’m still not sure.

 

Aolelon

Well-Known Member

• Apr 23, 2018

• #4

You said you havn't used any nutes so there should be no N toxicity. Miracle Grow does have some slow release nutrients in it that get released every time you water but it shouldn't be enough. I do think 1000w MH at 18" is your problem. That is wayyy to close for that little one.

 

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Growman1010

New Member

• Apr 23, 2018

• #5

Can beat stress cause the yellowing of the leaves? I’ve never had this problem, then again I’ve never had a light this strong. Would it hurt to use a small dose, or just wait it out until I see some improvements? I will give an update in about a day or so. I have moved the light up and brought temps back down to about 76 degrees. Thanks!

 

70's natureboy

Well-Known Member

• Apr 23, 2018

• #6

I always run flourescents lights until they get 8-10 inches tall. Those little babies are getting broiled.

 

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Growman1010

New Member

• Apr 23, 2018

• #7

Thanks everyone, your comments are helpful.

 

Indacouch

Well-Known Member

• Apr 23, 2018

• #8

They should pull through. Next time stay away from the MG soil. Also make sure the soil is dry between waterings. Constant moisture can slow down growth and cause all sorts of issues with little ones. Those little plants can go a good while between waterings. I hope it turns our well for you .....GL

 

MisssMaryjane

Well-Known Member

• Apr 23, 2018

• #9

I use Mg soil for all my plants. I also add sum other nutes when in flower. I've always had good luck using Mg.

 

Randomestguy

Well-Known Member

• Apr 23, 2018

• #10

I'm assuming it's an air cooled hood, I've got my 1000w running at 400w and it's about a foot from them. Try to find your waters ph, don't quote me on it but I think mg soil is ph'd at 7 so higher ph water would start locking out your plants not to mention mg is kinda hot, could be nute burn.

 

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Beachwalker

Well-Known Member

• Apr 23, 2018

• #11

Growman1010 said:

Can beat stress cause the yellowing of the leaves? I’ve never had this problem, then again I’ve never had a light this strong. Would it hurt to use a small dose, or just wait it out until I see some improvements? I will give an update in about a day or so. I have moved the light up and brought temps back down to about 76 degrees. Thanks!

Click to expand...

Heat stress, overwatering, talk about your pH ?

 

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Growman1010

New Member

• Apr 23, 2018

• #12

Randomestguy said:

I'm assuming it's an air cooled hood, I've got my 1000w running at 400w and it's about a foot from them. Try to find your waters ph, don't quote me on it but I think mg soil is ph'd at 7 so higher ph water would start locking out your plants not to mention mg is kinda hot, could be nute burn.

Click to expand...

It’s actually just a wing reflector and I will be checking ph in a few.

 

Randomestguy

Well-Known Member

• Apr 23, 2018

• #13

Growman1010 said:

It’s actually just a wing reflector and I will be checking ph in a few.

Click to expand...

Can't really help ya past that then, oscillating fan I guess.