Help diagnose (with pics)

WW hydro first ever grow
250W CFL
7th week of flowering
Vitalink nutes + Hygrozyme (root stimulant)
TDS around 350ppm - it's a small plant

as for PH, it has been quite high until recently (the last week or so). PH used to rise up to 6.5 over the course of few days and I thought that was okay - yea I know I'm a noob now I keep it around 5.5 even if it means adjusting it twice a day.

Lower/middle leaves:


Upper leaves:


It seems to me like a zinc/magnesium/potassium deficiency? Should I just try to keep the PH low for now or will it not go back to normal without flushing? (it looks like she's still developing brown spots on lower leaves even though PH isn't too high anymore) help!

P.S. her little sister is doing a lot better

i dont use hydro, but i wouldnt worry this late in flower, my girls started to yellow at end of week 5, i have a 7 week strain, when ur this close i dont think that deficiencies matter much, just looks like some old growth is dying off, nothin to worry about, be happy ur almost there! GL

IDK much about hydro but as soon as i saw the first pic i thought PH spoting. adjusting ph twice a day? damn we need to get some people experinced in hydro in here to help

yes we do, i'd like to know about this problem myself.. my dwc res ph doesnt stay good for very long at all..

diamonddave said:

i dont use hydro, but i wouldnt worry this late in flower, my girls started to yellow at end of week 5, i have a 7 week strain, when ur this close i dont think that deficiencies matter much, just looks like some old growth is dying off, nothin to worry about, be happy ur almost there! GL

Click to expand...

thanks man

bump

All i grow in is Hydro. I use a top down / bubbleponics /dwc method.

After reviewing your pics, it is my opinion that the "burnt" ends could be nute burn. As for the yellow spots and the general drooping of the leaves could be lack of ventilation to the plants lower leaves. Being as it is that you are so close to harvest, the lower leaves tend to yellow and fall off during the final stages of life. This is to be expected and not to be confused with other problems.

Honestly, I really wouldnt worry about it. The overall health of the plant looks really good. Hope this helped you.

Peace