Help needed :(

[highlife42092]

Hello,
Ive been lurking around the forum for awhile but need some help.

Im midway through my first grow and have some issues i just cannot get right and was hoping you guys might be able to help before its too late .
I currently have a few different strains in the tent fast buds lsd-25, barneys tangerine dream and fast buds gorrilla glue and have devolped some serious issues with the plants.

Tent is a 1.2x1.2x2 using 8"rvk on variac controller with rhino filter passing through air cooled hood housing a 600w hps.intake is a 4" again variable controlled and a recirculating tower fan and humidifier and also a exhale co2 bag.
Plants are in 15l smart fabric pots using biobizz light mix soil and biobizz nutes.
Grow,bloom,topmax,algamic.also have epsom salts.
Temps stay around 25 degrees celcius with humidity around 40%.
I have been feeding alternate feeds/water water is tap water that is normally ph around 6.5-7
And all are flowering but i have devolped some form of deficiency/nutrient issue and i cant seem to figure it out. All plants were fine through veg stage.
Feeds have been 1.5ml algamic 2ml grow 2ml bloom and 2ml topmax with epsom salts added at week 4 and week 7.
Please take a look and see if you can help.

Thanks

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[SmithyGreen]

PH solution to 6.8
Add calmag per instructions on container.
Looks like a Nitrogen, Maganese,Magnesium, and Phosphor deficiency to me coupled with some nutrient lockout. It could just be lockout though. Something could be causing PH runaway. What is yhe PH of your draining water out of the pot? Start there and work your way out. If the PH is not 6.8 to 7.0 on the runoff water that could be one of your biggest issues. PH lockout is a turd.

 

[highlife42092]

The run off is normally ph of 6.8-7 i was thinking cal mag what cal mag would i use with biobizz would molasses be enough

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[namvet25]

The second,third, and fourth plants should be flushed with two or three gal of ph;d water with calmag then give them a full dose of veg nutes to get them to green up a bit.The other plants may be to far gone to help.

 

[highlife42092]

The second,third, and fourth plants should be flushed with two or three gal of ph;d water with calmag then give them a full dose of veg nutes to get them to green up a bit.The other plants may be to far gone to help.

Which cal mag would you use as biobizz dont make one from what i can find thanks

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[namvet25]

https://www.amazon.com/s?k=cal/mag+...refix=cal/mag+for,aps,183&ref=nb_sb_ss_i_1_11 I use general hydroponics but any brand will work.

 

[Waira]

Im midway through my first grow and have some issues i just cannot get right and was hoping you guys might be able to help before its too late .
I currently have a few different strains in the tent fast buds lsd-25, barneys tangerine dream and fast buds gorrilla glue and have devolped some serious issues with the plants.

Tent is a 1.2x1.2x2 using 8"rvk on variac controller with rhino filter passing through air cooled hood housing a 600w hps.intake is a 4" again variable controlled and a recirculating tower fan and humidifier and also a exhale co2 bag.
Plants are in 15l smart fabric pots using biobizz light mix soil and biobizz nutes.
Grow,bloom,topmax,algamic.also have epsom salts.
Temps stay around 25 degrees celcius with humidity around 40%.
I have been feeding alternate feeds/water water is tap water that is normally ph around 6.5-7
And all are flowering but i have devolped some form of deficiency/nutrient issue and i cant seem to figure it out. All plants were fine through veg stage.
Feeds have been 1.5ml algamic 2ml grow 2ml bloom and 2ml topmax with epsom salts added at week 4 and week 7.

- I'd say all are looking a bit underfed, not unusual with biobizz which is pretty mild,...
- first pic, looks like P defc., maybe a micronute as well,... those burnished patches are P defc., and in part, normal color expression by this strain.... this late, I'd not bother trying to "fix" this, she looks near done already,... stay on feeds, maybe boost the PK some if she's going to stick around more than a week,... But don't flush, no need especially with Biobizz,....
-- the others, mostly P defc. I suspect S too (top to bottom yellowing, uppers worst),... see how badly the fans were tapped out for P? S is immobile within the plant, meaning it can't be translocated from established tissues to new growth like mobile nutes can,...
--- masking by P defc, I suspect more micronute defc., likely Mn from the look of those necrotic patches, pretty rare actually, but it's had to call when things are this muddied up with multiple symptoms,... I too think some N defc. is happening, but that hits lowers first and worst, and again it's hard to say with everything else happening,... Some of that is normal though for mid-late bloom stage,...

>>> have you checked in-pot pH? With this line, no adjustment to the nute soln. is needed, but that's no reflection of what going on in the pot....
>>> AlgaMic, does that have Mn in it? How about S (sulfate)? the epsoms do, pure MgSO4.... 1tsp/L is good for soil treatment, 1-2x/week then lay off it to avoid overloading....

 

[Citadel]

- I'd say all are looking a bit underfed, not unusual with biobizz which is pretty mild,...
- first pic, looks like P defc., maybe a micronute as well,... those burnished patches are P defc., and in part, normal color expression by this strain.... this late, I'd not bother trying to "fix" this, she looks near done already,... stay on feeds, maybe boost the PK some if she's going to stick around more than a week,... But don't flush, no need especially with Biobizz,....
-- the others, mostly P defc. I suspect S too (top to bottom yellowing, uppers worst),... see how badly the fans were tapped out for P? S is immobile within the plant, meaning it can't be translocated from established tissues to new growth like mobile nutes can,...
--- masking by P defc, I suspect more micronute defc., likely Mn from the look of those necrotic patches, pretty rare actually, but it's had to call when things are this muddied up with multiple symptoms,... i too think soem N defc. is happeneing, but that hits lowers first and worst, and again it's hard to sat with everything else happening,... Some of that is normal though for mid-late bloom stage,...

>>> have you checked in-pot pH? With this line, no adjustment to the nute soln. is needed, but that's no reflection of what going on in the pot....
>>> AlgaMic, does that have Mn in it? How about S (sulfate)? the epsoms do, pure MgSO4.... 1tsp/L is good for soil treatment, 1-2x/week then lay off it to avoid overloading....

You are correct alg a mic is basically cal/mag if you remember I had these same issues maybe 4 weeks ago and you helped me out. Gave Epsom salts as a quick fix then upped my alg a mic to 4ml with every watering and it sorted everything out[emoji106]

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[Waira]

try that again, and look into getting a PK booster, like CANNA PK 13-14 ....

 

[highlife42092]

I seem to have stopped the decline and all are now going good again flushed twice with 1/4 strength nutes then a full dose plus some calmag [emoji106]

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