Bleach?

[knidik]

Hi guys,

Small problem with both of my plants: seems the top is turning pale green. Is it light bleaching? Moved up the lights yesterday.
Médium : soil
Lights : 150w led, 20cm to plant moves 35cm away. Ordered new grow room for more headroom (1,7m).
Lst training.
Grow space : 0,6x0,6x1,4m
3rd day flowering, had 4 weeks veg
pH always checked before watering, using bionizz nutes.
Bleaching right?

edit : northern Iights strain

thanks a lot!

 

[TreeFarmerCharlie]

Those don't look bleached, but your lights were definitely too close, IMO. Even though LEDs don't put off a lot of heat, putting them too close can still cause bleaching. I personally try to keep my LED lights at least 18" from the canopy.

 

[knidik]

Thanks. Another problem or just fine?

 

[TreeFarmerCharlie]

They look perfectly fine to me.

 

[knidik]

Thank you

 

[Corso312]

Hi guys,

Small problem with both of my plants: seems the top is turning pale green. Is it light bleaching? Moved up the lights yesterday.
Médium : soil
Lights : 150w led, 20cm to plant moves 35cm away. Ordered new grow room for more headroom (1,7m).
Lst training.
Grow space : 0,6x0,6x1,4m
3rd day flowering, had 4 weeks veg
pH always checked before watering, using bionizz nutes.
Bleaching right?

edit : northern Iights strain

thanks a lot!

Are you referring to the new growth at the tops that's a lighter shade of green?

If so, that's normal, it will darken up in a week.

 

[knidik]

Yep was referring to that. Was hesitating between bleach and new growth. Thanks for your answer

 

[getogrow]

he is 100% right....its just light green from new growth,. nice and healthy looking. bleaching is hard to do overall.

 

[knidik]

Thanks getogrow

 

[Powertech]

It dos look like you have a mag deficiency. Some of the bigger fan leaves just under the new growth has yellowing but the veins are still dark green. I'm no scientist and I don't know much about growing by any means, but pretty sure they need Mag and N to get that nice green color. If it were me I'd keep doing what you're doing and just sprinkle some Epsom in with your next few feeds

 

[knidik]

It dos look like you have a mag deficiency. Some of the bigger fan leaves just under the new growth has yellowing but the veins are still dark green. I'm no scientist and I don't know much about growing by any means, but pretty sure they need Mag and N to get that nice green color. If it were me I'd keep doing what you're doing and just sprinkle some Epsom in with your next few feeds

bottom leaves are fine... will give the epsom a try if I find any

 

[knidik]

Ordered some calmag.
Should I expect the leaves to darken if that was the problem?

 

[knidik]

Right after further investigation might sulfur def. Will flush and adjust the soil pH

 

[getogrow]

no do not "flush" Thats bad and will not help at all.
Do not try to correct perfection. that coloring is a good thing , its showing you how fast she is growing. This is all normal after the flip.
In a few days those will be dark but there will be more new growth , light green.