Help Needed..alaskan Thunderfuck & Dark Devil 600w Hps Coco Grow Diary

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Hi guys I have documented some of this in my skittelz grow diary however I thought it be best to start a separate one for my autos.

I have 6 autoflowers - 5 x Alaskan thunderfuck (ATF) and 1 x Dark devil .

The oldest 1 autoflowers popped on November 29th.

I have done some minor LST work with these. In the last week however the largest one has started to become slightly pale . Also the 1 largest ATF’s seem to be completely different phenotypes with one sativa dominant and the other indica .

They are still not showing any pre-flowers!

The other autos popped on the 11th December . I have been having problems with these. The dark devil in the 2nd tomlast pic has been burned by nutes . I was only feeding at 0.4ec .

Set up is :
1.2x1.2x2m grow tent
6” carbon filter and extractor
Canna coco and clay pebble mix
Ionic grow nd bloom nutes
Calmag

Any help would be much appreciated
 
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I have flushed the smaller autos with 0.3ec feed until the run off dropped to 0.4ec. The larger ones I have just fed with 0.55ec feed , run off was 0.45ec
 
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So I ‘flushed’ the smaller autos with feed at 0.3ec until the fun off was the same and things are starting to improve
 
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great except it's coco not soil, don't treat it like soil. you don't water based on how heavy the pots feel. Those bigger pots I would be watering at least 2x a day, and as I said before, coco should never be dry.
 
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great except it's coco not soil, don't treat it like soil. you don't water based on how heavy the pots feel. Those bigger pots I would be watering at least 2x a day, and as I said before, coco should never be dry.
Thanks for the reply .
I have been watering the bigger pots generally once a day
Today things are looking much better . The ladies are starting to darken up .
I am also a but it baffled as to why there have been no pre-flowers yet as they are over 30 days (larger ones )
I really need these to be done by mid March latest but m hesitant to flip to 11-12 just yet
 
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Things are looking much better again today with rhe colour of the leaves starting to darken .
The second to largest auto thunderfuck has not started showing pre-flowers . I have upped the ec on these to 0.75ec PH6
 
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You're in coco and from your pics it looks bone dry. Coco shouldn't dry out. Up your waterings.
Thanks for the reply .
I have been feeding the larger auto thunderfuck daily however missed a feed . Have just watered . The smaller autos I have been watering every 2-3 days to enable root system to better fill the pots . Also done some LST work on the smaller plants
 
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