Discolored Leaves

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ninja834

Member

• Jan 10, 2012

• #1

First grow. Doing hydro. She has been growing very fast but the leaves are discolored around the edges. Im not really sure what the problem is. Any ideas?

 

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SmoochieBoochies

Well-Known Member

• Jan 10, 2012

• #2

It looks like you are giving her too much nitrogen and burning the leaves. You need to back off of the nitrogen until the damage stops progressing, then start her back on 1/2 strength nute schedule. Happy growing!

 

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ninja834

Member

• Jan 10, 2012

• #3

The only other thing I could think of was not enough or too much plant food. You think too much? I havent exactly been measuring how much food I give her. Ive never changed the water either, should I? I thought about changing it regularly but it didnt make sense putting the nutrients in the water and then dumping the bucket after a few days. Instead of changing the water I have been topping it off with fresh water every morning. Ive kept the PH at 6.0 but I heard some other people talking about PPM. The PH tester I have has a PPM feature on it but Im not sure what I should try and keep it at. Also, what do you mean 1/2 strength nute schedule? Im not on any kind if nute schedule. Can you explain?

 

whitefrost

Active Member

• Jan 10, 2012

• #4

what is the temp and what light wattage and how close

 

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ninja834

Member

• Jan 10, 2012

• #5

Temp with light on is around 80. Temp of water is about the same. Bulb is 400w but we have been running it at 250w. The distance from the light to plant is about your hands length.

 

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whitefrost

Active Member

• Jan 10, 2012

• #6

sounds about right i had a halo of damaged leaves from having my light to close look very much the same thou the problem was fixed the leaves continued to decline over a course of weeks till they got bad enough to need removing

 

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unity

Well-Known Member

• Jan 10, 2012

• #7

They were either scorched when the affected leafs were the top leafs or suffered nutrient burn at that growth phase. Don't matter anymore though, since the new growth looks good to me from the pics.

Kind

 

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ninja834

Member

• Jan 12, 2012

• #8

My plant isnt looking very good. The leaves on the top are curling and even more discolored. The leaves on the bottom are wilting and falling off quickly. I changed the water and gave it some nutrients. The PPM meter is showing 2000. Im not sure if its working cause I only gave it a few cap fulls. What should the PPM be at? Any advice?

 

HolyMoley

Member

• Jan 12, 2012

• #9

ur water temp is high, could lead to root rot... happened to me in a nft system... worst thing ever no fun killing 30 plants cuz roots are sludge...

 

cowboylogic

Well-Known Member

• Jan 12, 2012

• #10

You really need to change the solution out completely at least every 10-14 days.

 

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unity

Well-Known Member

• Jan 12, 2012

• #11

ninja834 said:

My plant isnt looking very good. The leaves on the top are curling and even more discolored. The leaves on the bottom are wilting and falling off quickly. I changed the water and gave it some nutrients. The PPM meter is showing 2000. Im not sure if its working cause I only gave it a few cap fulls. What should the PPM be at? Any advice?



View attachment 1991623View attachment 1991619View attachment 1991620

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Sorry, I must have missed these pics
That water temp is not acceptable, you will need a chiller, or have to grow in soil.

 

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ninja834

Member

• Jan 12, 2012

• #12

I changed the water again and did another PPM reading and it said 200. I guess its working and I was really overdoing it with the nutrients. What should my PPM and water temp be?

 

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unity

Well-Known Member

• Jan 12, 2012

• #13

Under 70, if your res is in the same room as your plants you will need a chiller. Your res will have ambient temperature unless you manually cool it down with ice packs (I would only do that in an emergency) or add a chiller.
I think that you can add some hydrogen peroxide (check about dosing first!!!) every 2-3 days to keep the pathogens under control, it would also help with the rootzone. Al'B fuct talks about that alot in his old threads.

Bottom line, in hydro you will need a chiller unless you are in a cooler climate. Even then, the submerged pumps, and augers can raise the temps back up.
I mentioned the word chiller 3 times for a reason!
Good luck ganja brother!

Kind