flat9's first sick plant

[flat9]

So the biggest young lady has had some bizarre behavior, undoubtedly due to my mismanagement. Firstly there was a stunted leaf that never developed. Secondly now there are major signs of either some deficiency or overfeeding. The other ladies show some slight yellowing but very minor, isolated to one spot. These are Think Different btw.

FYI, I kept EC at about 1.1 just using Sensi Grow A and B (the former has calcium and manganese I think), Voodoo Juice, and B-52. The pH swung around a bit and generally would rise over time, so I found myself setting it at 5.6 and it would rise up to 6.2 or so. Never did the pH, however, rise above 6.3 and it never was below 5.6.

Here are the pics of her progression. I took the EC down to 0.5 and set pH to 5.6. Help with this situation is extremely appreciated!

 

[flat9]

Any chance this is cal or mag deficiency? I could pick up cal mag plus tomorrow.

 

[A4]

Give it a few hours and someone will be in to help you out bro! Hydro is completely out of my element and I would rather give you no advice than bad advice. Hope she gets to doing better though!

 

[flat9]

Yeah not much going on in here so if anyone comes along, please feel free to come back to my journal and let me know what you think!

https://www.autoflower.org/f102/flat9s-first-grow-journal-23287.html#post449267

 

[newbud]

try and keep the e.c. 0.5

p.h. 5.9-6.0 at this stage there very young and from my exp this e.c works well for the first 10 days day 11 from seed..........

ph. 5.6 - 6.3 plants are big enough to cause the ph to drift
e.c. 0.9(actual 0.7)

 

[flat9]

Thanks for the tip....