WW+SOG

I just checked on the ?girls? and appears that the coir is retaining moisture between feedings better than before. The stuff was drying on top in between before, now it is dark colored and still moist during the off cycle. I did not change the fert level, but I did add 1cup of h2o2. The girls seem ok, most are perky, a couple still show yellow tips and one went from yellow tips to brown. These leaves are the second set of real leaves, that emerged the day that I moved them to coir. The third set looks ok - still tiny - but kinda pale in color. BTW I also raised my light to 24", we are having a warm spell and temp was close to 81f, now it is 77f measured at the plant tops. 37%rh.

WW+SOG

Sure thing crop, soon as I figure out how.

WW+SOG

Here ya go, taken before I adjusted the pump timer which I reset again now running on for 30mins/off 45mins

Attached Thumbnails

   

WW+SOG

What are these spots, and do you see any problems I might head off?
ph 6.3, ec 1.7, ppm 885 (hanna meter) res temp 69f
pump is on 15mins 4 times a day every 6 hours

Attached Thumbnails

     

   

g1ithc

what nutrient mix are you using, i.e. 885ppm of what nutrients?

kinda unrelated, but is your RH still 35%?

I'm not a coco grower, and couldn't remember the pH range coco is supposed to drift between. I looked it up briefly just now and it seems that 5.8pH is still the magic number with coco coir. If thats truely the case, your pH might be a titch too high

third picture looks over watered

__________________

.....Posting GuidelinesNursery Questionnaire My Current Journal

g1ithc

i just saw that in your grow journal your RH is 22%

the lower your RH is, the easier it is to burn your plants with too many nutrients (increased water uptake)

22% is nosebleed dry

__________________

.....Posting GuidelinesNursery Questionnaire My Current Journal

WW+SOG

Glithc: Thanks for looking, My RH is 35%. I am using Ionic Grow for soil/coco at 1/2 strength + Floralicious Grow supplement. I had added dolomite lime before the res change, and it raised the ph too high and kept creeping back up, so I did a complete res change with flush, that seems to be working but the ph has crept back up to ~6.2. I have noticed that the ec keeps slowly rising currently 1.7 and the ph has stabilized at 6.2, plants look much better and have started rapid growth. see my journal post of today. I tried to lower ph using white distilled vinegar, and within a day it rises to 6.2 again. I think the lime has been captured in the coco and I read that dolomite lime adds calcium and magnesium, so this is a good thing I think. I agree that the third picture looks overwatered, may have to get an adjustable dripper for that one.

Thanks for helping me, this is really my first grow of any type and there is much to learn.

TheSharpCajun

g1ithc is right, you may have a problem with RH. It would definitely explain the rising ec as the plants are drinking more water than taking on nutrients. This would also explain the over-watered look of the one plant, since the plants are over-watering themselves to keep hydrated. Your RH may just be a little too low, you might look into ways to raise your RH to about 45-50%. I believe it will help your plants.

TC

__________________