Calling dr greenythumb

[Servadac]

Hello dr, i need advice on what is happening to my babies is normal or if i can help them be healthier. Im real new to indoor and auto parenting and would appreciate the help. They are original amnesia and cheese strains from dinafem and are all (13) 61 days old. Ive a thread on this grow (signature) for more details but i will give you a quick diagnostic of symptoms and environement. Sorry for sketchy post but in a phone in stealth mode.

I suspect early yellowing on leaves in particular the small crown and bud leaves, they are very dry. I run 2 x 600w hps with sufficient ventilation in soil (lightmix) in 11lt pots. The nutes are bio nova supermix for autoflowers. I changed about 2 weeks ago the pk 13/14 for plagrons Green sensation additive (i noticed p 9 and k 10) . The pH in has constantly Been 6.5 but dont have an instrument to Check soil pH (a bit under 6 ish), so last feeding pH in was just under 7 to try and readjust.

The average day temp is 28 d�gr�es celcius and hygro varies from 38% to 51% (hard to keep temps lower because outside is 35degrees celcius)

Dinafem says 75 to 85 days for oa and 70 for cheese.

Here are the pics, sorry for bad quality

Do you accept medicare doc ??

Ty

 

[A4]

Alright Servadac, I gotta say the pictures make it difficult. That is definitely Phosphorous deficiency, although that last pic looks more like heat stress(possibly too close to lights?). Maybe some others as well but it is difficult to tell from the pics. There are several that are classic phosphorous deficiency though. Now the million dollar question, what is causing it? I know you have had some low ph problems in the past, it could be due to that. It could also be the ph may still be too low for good phosphorous uptake, the good uptake for P starts about 5.8. It is possible you are just below or right on the bubble with that number and the plants simply aren't getting enough. Continue to try to get your ph up with every feeding and stay low on the N and high on the P. A cannabis plant is nearly impossible to feed to much Phosphorous.

 

[Servadac]

Thanks i knew i could count on you A4, its true the additive i now give is less in p than the pk13/14 i was giving. I will continue the green sensation and add a little pk13/14 in the mix or maybe go back to it completley. I also remarked That the stimulant additive was lowering my pH where as bio nova´s pk13/14 did not. I have already raised lights and increased air conditionner to avoid heat stress. So sorry for the poor quality pics. The photos That u cant see much also show the heat stress as u signaled in the last photo. Well ill be slumdogged.

Thanks doc

 

[Mr Piggy]

If you could take a plant out of the tent and take a picture the mylar would quit throwing the light back at the camera. I'd really like to know what your soil ph is, from this angle it looks a bit like lockout.

 

[Servadac]

If you could take a plant out of the tent and take a picture the mylar would quit throwing the light back at the camera. I'd really like to know what your soil ph is, from this angle it looks a bit like lockout.

Thanks for stopping by mr piggy, im out of Town at the moment but my partner took what is considered to be a better photo, cough, i think too That there is lockout but cant get a real soil pH reading, as i also would Like to know. But i wil get a pen for next grow, That way i dont bother good people Like yous for nothing. Today They got extra p and k and no N, will Check up monday.
Cheers and au revoir.