Ak auto

Moflow

Well-Known Member
@Thebigyin Your problems with the plants was you were running that SF4000 light Far too close.
Plants can't handle that much light. Too much light causes all sorts of problems that appears like nute deficiencies that people try and cure this by adding more nutes, additives and end up chasing their tails.
I sèe you've moved it up to 33", thats much better.
SF-4000PPFD_900x.jpg
24" is probably the closest you would run that SF4000 in flower. I'd say 24" - 28"
18" with co2
12" bonkers! Lol
In veg they need around a ppfd of 400 - 500.
You should be able to dim that SF4000
Good luck with your grow.
 

Thebigyin

Active Member
@Thebigyin Your problems with the plants was you were running that SF4000 light Far too close.
Plants can't handle that much light. Too much light causes all sorts of problems that appears like nute deficiencies that people try and cure this by adding more nutes, additives and end up chasing their tails.
I sèe you've moved it up to 33", thats much better.
View attachment 4597963
24" is probably the closest you would run that SF4000 in flower. I'd say 24" - 28"
18" with co2
12" bonkers! Lol
In veg they need around a ppfd of 400 - 500.
You should be able to dim that SF4000
Good luck with your grow.
Yes, thanks for the info, I have faired better since I moved the hight of the led, must say I've no experience with led or anyother type lights.
 

Thebigyin

Active Member
An small update on the tent tonight, the AK is 90 days old today still ain't ready but hopefully not too much longer, my three northern lights are coming along nicely.IMG_20200627_200102.jpgIMG_20200627_200023.jpg
 

Moflow

Well-Known Member
They're starting to look in far better shape now you've the light hung a lot higher @Thebigyin
What ya feeding them with? The 2 plants on the right of above pic look a bit hungry the one at the back too.
You should do far better with those 3 plants. Good job
 

Thebigyin

Active Member
They're starting to look in far better shape now you've the light hung a lot higher @Thebigyin
What ya feeding them with? The 2 plants on the right of above pic look a bit hungry the one at the back too.
You should do far better with those 3 plants. Good job
Hi, thanks for your input, I've actually changed to mega crop dry powder, those three northern lights have had 6lt water mixed in 2gram megacrop, they have had this twice now, so IL maybe up it to 4grams for the next feed.
 

Moflow

Well-Known Member
Hi, thanks for your input, I've actually changed to mega crop dry powder, those three northern lights have had 6lt water mixed in 2gram megacrop, they have had this twice now, so IL maybe up it to 4grams for the next feed.
I got the megacrop at the start of lockdown as I couldn't get my usual Tomatorite because everywhere was closed.
Seems to work ok. They have a new 2 part feed now so you can tweak the feed a bit but it seems it's only available is US at the moment.
I use the ec meter method rather than weighing out in grams.
 
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