What deficiency do these UC DWC girls have?

caligreen420

caligreen420

Well-Known Member
How are these ladies looking to you experienced folk? They are white widow, in an undercurrent system. Res is a little warm at 7.5*F. Thanks for your time!photo (10).JPG photo (11).JPG photo (12).JPG photo (13).JPG photo (14).JPG
 
caligreen420

caligreen420

Well-Known Member
They are looking a little brittle, as well as wilty, temps reach mid eighties when shut over night, any suggestions, or ideas what this might be? Photos with the HPS off are posted below.
 
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caligreen420

caligreen420

Well-Known Member
1.JPG
Image 1: White Widow Female #1
2.JPG
Image 2: White Widow Female #2
3.JPG
Image 3: White Widow Female #3
4.JPG
Image 4: White Widow Female #4
 
caligreen420

caligreen420

Well-Known Member
1a.JPG
Image 1a: White Widow Female #1
2a.JPG
Image 2a: White Widow Female #2
3a.JPG
Image 3a: White Widow Female #3
4a.JPG
Image 4a: White Widow Female #4
 
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caligreen420

caligreen420

Well-Known Member
2) Growing indoor
3) UNdercurrent DWC, eight hundred gallon per hour pump
4) Growing Medium - hydroton and red lava rock
5) What stage of growth - vegetative, AN 3 part nutrients six hundred ppm. 5.9 pH
 
Squidbilly

Squidbilly

Well-Known Member
I'm not DWC, but I can tell you have some issues.

I would bet your PH is off, or your not feeding them enough.

They show signs of cal, mag, phos, and I think N deficiencies. This is either from to low ppm or ph being off and your plant can't uptake certain nutrients.
 
Squidbilly

Squidbilly

Well-Known Member
What are night time temps? The stems to your fan leaves shouldn't be purple, I think that's either too cold temps at night or phos deficiency-I could be wrong though :/
 
Squidbilly

Squidbilly

Well-Known Member
I would ask a DWC guy. I know alot but I don't have experience with DWC, don't want to point you in the wrong direction.

i know your resevior is too hot though! Get that down below 68. How you do that in DWC, I do not know.

I run coco in an automated DTW. I just had to convert a cooler into my resevior. I refill my resevior every 4 days, the temp of my solution is about 65-70degrees when I put it in but I also put in a half gallon jug I filled with water and froze. This brings the temp down to about 60 and it keeps it below 65 for 4-5days.
 
TexasHank

TexasHank

Well-Known Member
Hey Caligreen420..
Is that Lava Gravel you are growing in or shale?

Looks like Lava Gravel.. how does it do?
 
caligreen420

caligreen420

Well-Known Member
TexasHank said:
Hey Caligreen420..
Is that Lava Gravel you are growing in or shale?

Looks like Lava Gravel.. how does it do?
Click to expand...
Just using it until the store I go to gets hydroton back in stock, should be fine though, it is an inert medium. pH seems to be stable.
 
C

churchhaze

Well-Known Member
395ppm is a bit low. Your plants look great, but would green up and grow a bit faster if you upped it to 800ppm.

I agree with squidbilly that it's slightly deficient in just about everything. After raising the ppm, you should also see the stems and petioles turn a yellowish green.

DWC is where I have the most experience. 75F res temp isn't going to cause these symptoms.
 
caligreen420

caligreen420

Well-Known Member
Aloha Haze, thank you for your time. When I woke up this morning I saw your post and uped the rez ppm to 835. I also added some veganic cal-mag to the mix. Any other suggestions at this point or is it a waiting game for them to perk back up. Mahalo nui loa once again.
 
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