Issue autoflower

S

StrawGreen

Active Member
Dear community,

Any guess here. Ph or magnesium deficiency?
Alaskan purple auto

75% perlita/peat (70%peat 30% perlite)
20% worm casting
5% cocoa fiber

ph'ed water 6.5 (citric acid food grade)
just biobizz line
recharge each 7 days
18 days old
just started with fish mix this week before onl roots juice, heaven and calmag (average 50% dose)
25 -26Celsius
450ppfd this week, weeks before 350ppfd.

20220418_065506.jpg
 
Hey good morning I am not seeing to much......are you referring to the slightly yellow tone to the leaves? I see your not in soil so I personally cannot give advice on what to fix....maybe @Bill284 can give you a hand...he would be more familiar with your type of grow.

Good luck
 
Good morning.... Is there a chance you can take a closer picture? Yellowing from my experience is either nitrogen defiency or can be from over watering.... And that's where I'm a bit stuck....Im not sure how to run your medium so I'm not sure how to fix it....but dammit I'm willing to help try :headbanger:
 
StrawGreen said:
Dear community,

Any guess here. Ph or magnesium deficiency?
Alaskan purple auto

75% perlita/peat (70%peat 30% perlite)
20% worm casting
5% cocoa fiber

ph'ed water 6.5 (citric acid food grade)
just biobizz line
recharge each 7 days
18 days old
just started with fish mix this week before onl roots juice, heaven and calmag (average 50% dose)
25 -26Celsius
450ppfd this week, weeks before 350ppfd.

20220418_065506.jpg
Click to expand...
Good morning Hap. :ciao:
Hey @StrawGreen good morning my friend.
Cute gir , love your air pot.
You need a catch try under her.
Is that a concrete floor under her?
Peat moss works best if you use a wetting agent as it is hydrophobic. ;)
Go figure right.
Drop your ph down to 5.8 in peat moss.
Put your calmag in your mix first wait 10 minutes before adding nutrients it'll help with nutrition uptake.
Feed until run off each time.
And what ever nutrients your using go by the schedule for week 3.
Full strength, don't dilute it.
Start there.

Stay safe
Bill
 
citric acid won't hold your ph long enough. it's ok in a pinch if there is nothing else but is is only a stop gap measure.
 
could be just a touch hungry. a little calmag would probably fix it right up as well.
 
@StrawGreen are you under led ?
it's a guess but i suspect you're under a led and the plant is asking for a hair more calmag than it would otherwise. it varies a bit from plant to plant.
 
Bill284 said:
Good morning Hap. :ciao:
Hey @StrawGreen good morning my friend.
Cute gir , love your air pot.
You need a catch try under her.
Is that a concrete floor under her?
Peat moss works best if you use a wetting agent as it is hydrophobic. ;)
Go figure right.
Drop your ph down to 5.8 in peat moss.
Put your calmag in your mix first wait 10 minutes before adding nutrients it'll help with nutrition uptake.
Feed until run off each time.
And what ever nutrients your using go by the schedule for week 3.
Full strength, don't dilute it.
Start there.

Stay safe
Bill
Click to expand...
Hey @Bill284
Thank you for guide me... is a cut girl for sure :) and she also loves the air pot.
about run off should I do even with biobizz nuts? I'm on 3week nut schedule but 75% 50% dose each watering. I used to add calmag all together and I'm using a organic source but I also have Magnifical for foliar spray.
It is a laminated flooring under her, average temp inside 73F.
 
StrawGreen said:
Hey @Bill284
Thank you for guide me... is a cut girl for sure :) and she also loves the air pot.
about run off should I do even with biobizz nuts? I'm on 3week nut schedule but 75% 50% dose each watering. I used to add calmag all together and I'm using a organic source but I also have Magnifical for foliar spray.
It is a laminated flooring under her, average temp inside 73F.
Click to expand...
You want your roots searching for water.
Plus that tap root is at the bottom.
Water until runoff every time.
Best way to get the roots to shoot everywhere looking for water.

Stay safe
Bill
 
bluter said:
@StrawGreen are you under led ?
it's a guess but i suspect you're under a led and the plant is asking for a hair more calmag than it would otherwise. it varies a bit from plant to plant.
Click to expand...
Hi @bluter
about citric acid I'm using due to use biobizz and recharge. I read that other bottle ph down up call kill the process. Any suggestion about it? I'm concerned now with the dose that I'm using. About calmag, I added in the initial mix and now last watering- 18 days between first and last, and I used full dose in this case.
You are correct, quantum board led 240w - runnig at 30% with 450ppfd.
Thank you for help in this journey, appreciate.
 
StrawGreen said:
Hi @bluter
about citric acid I'm using due to use biobizz and recharge. I read that other bottle ph down up call kill the process. Any suggestion about it? I'm concerned now with the dose that I'm using. About calmag, I added in the initial mix and now last watering- 18 days between first and last, and I used full dose in this case.
You are correct, quantum board led 240w - runnig at 30% with 450ppfd.
Thank you for help in this journey, appreciate.
Click to expand...

run your calmag constant. add it first to every feed before you add the other nutes.

get a better ph. use a real one. lemon juice will screw up your nutes worse than anything else.. it's not stable at all.
 
bluter said:
run your calmag constant. add it first to every feed before you add the other nutes.

get a better ph. use a real one. lemon juice will screw up your nutes worse than anything else.. it's not stable at all.
Click to expand...
Hi, good night friends. I will follow both of you @bluter @Bill284 and add on every watering calmag and add before and wait and than other nuts. Thank you.
About ph control I'm really struggling with it.
Real one, you mean, bottled ph down like phosphoric  acid or similar? For ph up same idea, like something with potassium? I already used these regular ph down and up but during my learnings sessions I understood that this kind of product can easily impact on organic growth. Is that correct? It is my first try with full biobizz line.
 
StrawGreen said:
during my learnings sessions I understood that this kind of product can easily impact on organic growth. Is that correct?
Click to expand...


no. it's fine to use no matter.
biobizz has their own version if you are really worried about it. most growers mix brands all the time.
 
bluter said:
no. it's fine to use no matter.
biobizz has their own version if you are really worried about it. most growers mix brands all the time.
Click to expand...
Good to know, I have here and I'll try it next watering! Nothing to worry about ph down/up with recharge too?
Biobizz up and down both are not available in my region for thia reason I bought citric acid food grade.
 
StrawGreen said:
Good to know, I have here and I'll try it next watering! Nothing to worry about ph down/up with recharge too?
Click to expand...

should be fine


StrawGreen said:
Biobizz up and down both are not available in my region for this reason I bought citric acid food grade.
Click to expand...


there's always internet. anything available local will be fine. you don't have to stress about it or get anything special.
 
Maybe I need a extra strawberry cough to relax more hehehehe
Great time discussing this point, I'm very concerned with pH since I know that I can ruin everything!!! And honestly I read a lot and the conclusion is that I need to study more, no, I need to grow more
bluter said:
there's always internet. anything available local will be fine. you don't have to stress about it or get anything special
Click to expand...
 
StrawGreen said:
Maybe I need a extra strawberry cough to relax more hehehehe
Great time discussing this point, I'm very concerned with pH since I know that I can ruin everything!!! And honestly I read a lot and the conclusion is that I need to study more, no, I need to grow more
Click to expand...


well, your media is a bit all over the map. but we mostly ph for nutes so i gave bio a quick check. they like a non-ph, or a soil ph if in question. 6.2 - 6.3 would be their likely recommend in this situation. i would follow suit.


edit : i'm not the largest fan of biobizz. but if you stay inside their program they grow just fine.
 
StrawGreen said:
Hi @bluter
about citric acid I'm using due to use biobizz and recharge. I read that other bottle ph down up call kill the process. Any suggestion about it? I'm concerned now with the dose that I'm using. About calmag, I added in the initial mix and now last watering- 18 days between first and last, and I used full dose in this case.
You are correct, quantum board led 240w - runnig at 30% with 450ppfd.
Thank you for help in this journey, appreciate.
Click to expand...
That's a good looking plant. Why only 72 watts at day 18?
 
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