Picture diagnosis

[freshy101]

Heya Guys,

I know it's not particularly easy to diagnose solely off the images provided but take ya best shot!

4x4 tent
6" ventilation system
Autopots
2 small ocillating fans
100% Canna terra soil
6.5 pH (been pretty hellbent on making sure this is accurate of late!)
Feed - Megacrop 1.0, 450ppm
roughly 82 fahrenheit & 70% humidity
Strains = strawberry banana

Perhaps a deficiency or a pH issue?

Let me know your thoughts

Kind regards

Freshy

 

[Bigg Al]

Need more info! How old? what light? auto or photo? How close is lights. To me, looks hungry and might need some more magnesium. Just my 2 cents.

 

[Disburped]

Not enough soil for a full grow, soil is running low on all nutes. Options are limited, give it more of all nutes or move it to a bigger pot.

 

[Olderfart]

They look hungry to me, particularly for magnesium. However, 450 ppm of MC should be lots of the basics for an autopot setup in my opinion, so I’m thinking pH or some other prob. How are you measuring pH? If with meter, what brand, and are you certain it is calibrated?

 

[freshy101]

they are in their first week of flower so around 65 days old, switched from a blurple led light for veg to hlg 550 for flower, they are photoperiods and are roughly 23-24 inches from canopy, they are due a new res feed so ill wait til i head out tomorrow to grab a calibration kit since its been a fair while since ive recalibrated.

i best make sure i get the ph correct first of all then maybe i'll try upping the ppms if that doesn't work?

i'm measuring with a blue lab ph pen.

thanks a lot for your help guys i was doing pretty well up until this point so its shitty feeling!

just hoping i can fix it since i had a bad grow the last time around which was my first ever.

kindest regards

freshy

 

[freshy101]

these symptoms also just presented themselves if they help figuring it out in anyway

 

[Bigg Al]

Are you using cal/mag?

 

[freshy101]

Are you using cal/mag?

no added cal/mag just megacrop only

 

[LazyNhazy]

Back the light off would be my guess, stress from the added light and spectrum change. I find 3-4ft best for my qb120

 

[LazyNhazy]

I have 4 on a 320w driver, my ladies didn't like it anymore than 3/4 power at 2ft