Help!!

[Nonpoint]

I just did some reading on AN. Boy do they think they are fancy

Are you using bloom a+b?

 

[BII]

Apparently, you don't need calmag with that feed... apparently! Yah I am thinking a good flush would do no harm.

Yes, you will almost certainly still need cal-mag supplementation, even if using 'coco' versions of nutrients and additives (although my experience is with LEDs and COBs).

I use the new AN Connoisseur Coco Bloom A&B (modified simple TaNg regimen) from birth to harvest. I still definitely very much need cal-mag supplement. And in talking to an AN help line tech, he said that definitely with inherently fast-growing autoflowering strains that cal-mag should still be used to supplement the Connoisseur Coco versions (that come with higher amounts of cal-mag, but were designed for mainstream strains).

 

[norry_buds]

I just did some reading on AN. Boy do they think they are fancy

Are you using bloom a+b?

Ha ha yes they are definitely mad about themselves lol. Yah bloom A+B!

 

[norry_buds]

Yes, you will almost certainly still need cal-mag supplementation, even if using 'coco' versions of nutrients and additives (although my experience is with LEDs and COBs).

I use the new AN Connoisseur Coco Bloom A&B (modified simple TaNg regimen) from birth to harvest. I still definitely very much need cal-mag supplement. And in talking to an AN help line tech, he said that definitely with inherently fast-growing autoflowering strains that cal-mag should still be used to supplement the Connoisseur Coco versions (that come with higher amounts of cal-mag, but were designed for mainstream strains).

Great, thanks! It's not the Coco version. So do you reckon I need to flush, or keep going with the bloom nutes and get the calmag? You use the bloom the whole way through? Interesting! Good yields?

 

[BII]

I would presume with your significant problem(s) that doing a 'flush' could only help, with this a chance to restart with new nutrients.

Yes, I use AN Connoisseur Coco Bloom A&B from sprouting to harvest. You should be able find threads about this if you search for the Easy TaNg feeding schedule. As many on AFN having tried this confirm, the plants grow perfectly well fed AN pH Perfect Bloom A&B throughout the vegetative/grow phase (and why not? It's got to have enough to support heavy bloom growth). Plus the transition to bloom is seamless, without the problems that seemed unavoidable using both Grow and Bloom base nutrients. I generally feed at 2-2.25 mL/L base nutes from about day 10 on, and often add 2 mL/L of some natural/organic base nutes, such as AN Mother Earth Super Tea, figuring adding some organics can't hurt.

 

[Nonpoint]

Thanks Bll! You learned me something too. I'm pritty much a dipshit still but I didn't wanna leave the dude hanging haha.

 

[Waira]

-- looks like epic Mg defc to me,... could be Zn, but that usually hits the uppers first and worst as it's immobile, Mg is not, so usually it hits lower leaves first and worst.... when this advanced it makes diagnosis more difficult, as it can progress upward,.... Tell me where it started hitting first...
So it begs the question of why,.. first let me say, AN self buffers in solution only, and that's with low to no ppm/EC water; if your tap is hard, it'll tax the AN buffering capacity depending on how hard, may overwhelm it outright,.... once in-pot, all bets are off! -too many other influencing factors in there,... Mg is not easy to lock out by off pH, it has to be pretty bad,...and it would show in other ways, with other nute elements as well, so I'm leaning toward a lack-of issue,... some plants seem to have trouble with uptake and/or freakishly high needs,....
Fixing this will be work,.. a few foliar sprays of epsoms at 1tsp/qt, plus wetting agent so it coats and sticks better (get undersides of leaves especially) over a week or so will help reduce severity of impact,... that, or better still a micronutrient supplement,... Earth Juice Microblast is a great product,.. not sure what AN's supplement for this is..? But foliar is the fastest way in, and bypasses the root zone, which is good if there's an issue there,....
I think an in-pot pH check is warranted,... but I'm guessing you don't have a good soil pH probe handy; Accurate 8 is a good unit, otherwise it's the dubious run-off method,.. we have an improved method and calculation here in the highlighted section above this one,...

 

[norry_buds]

You... are... amazing...! Yes water is v hard here. I can switch to bottled if that's a issue? Or rain water which i know has good ph as my mate uses it. Can borrow his meter to check my soil actually. The top leaves are most affected but not so much the new ones. Bottom leaves are deffo greener. Also smaller, not xxl, plants are doing real well so that's puzzling. Never grew xxl before. Did too many new things this grow!

 

[Nonpoint]

I have been toying between rain water and my well water. I can see a positive difference in how the plants grow with rain water. My collection methods aren't keeping up so I have to supplement with with well water.

You... are... amazing...! Yes water is v hard here. I can switch to bottled if that's a issue? Or rain water which i know has good ph as my mate uses it. Can borrow his meter to check my soil actually. The top leaves are most affected but not so much the new ones. Bottom leaves are deffo greener. Also smaller, not xxl, plants are doing real well so that's puzzling. Never grew xxl before. Did too many new things this grow!

 

[Waira]

...yeah, switch up the water,... one thing that can happen is if the cumulative CaCO3 inputs from hard water build up enough, they can start to interfere with the uptake of each other, and other cations like Zn++,... it can also drive pH up near 7.0, which is where several micronutes like Zn, Fe , Mn etc. start to lock out,.... not positive this is the case here, a ppm/EC reading of your tap would be helpful,...