Deficiency?

[Naycha]

Hey micmac, flushed the plant and now EC is hovering around 0.9-1.1 and pH of 6. It seem to have stopped the bleaching of the leaves however, I think it might have been caused by lights being a bit close more than anything. I have started keeping the lights about further away from the plant. Has anyone else noticed leaves bleaching due to lights?

 

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I have had light bleaching before but only when the plants were extremely close to the globe.

[micmac]

Yeah I've done it as well

Bleaching is more like blond colour patches or extreme whole leaf

 

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[nici]

Bleaching can be common with leds if they're too close. I've had it on my leaves and tops of buds during flower before (that's when I know they're too close haha).

[Stumper]

I guess for a couple of nights I just left her under hps 250W and about a feet away without a fan and guessing that's what caused the bleaching. I might be wrong but the way she responded when I kept the light a bit further away led me to think of that.

 

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[Frank Reynolds]

I have my 600w MH about 45 cm away from my vegging plants no bleaching.

[micmac]

Yes Frank, it's all relevant to your environment

Different air/exchange movement rates, ambient temps all play a role

As I said the hand test is as good as any adjusting light height

Leds are a little harder ,but I think further and move in is a much better option than moving out When problems occur

 

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[Frank Reynolds]

Yeh was just commenting from last post about 250w i didn't read the whole thread thoroughly.

 

In reality i've only ever gotten bleached tops when buds grew into and was touching my old cooltube. This LED i had got pretty damn close late in flower no bleaching either. But i agree further away better to be safe.

[micmac]

I can't see any bleaching in your last pic

 

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[Stumper]

Thanks micmac and Frank. I'm a noob in growing(my first ever growing any plant) so with my limited experience and knowledge I thought that might have been the case. I'm glad to have you guys help out with advice

The reason I thought it was bleaching due to lights was because I was doing Google research() and came across a couple of people who faced similar issues on other forums and they had said it's due to lights and the pattern of their tip of leaves bleaching was quite similar to mine. But probably not, oh well I can only get better at troubleshooting issues with practice.

 

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[nici]

Looking at the pics I don't think that's bleaching, bleaching looks "softer" like someone has rubbed off the colour, that's quite uniform in the pattern around the leaf tip which may point to your original thought of a deficiency.