Having a problem identifying this issue/defficiency!!

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solo.dolo

Member
Hi there, so i got these clones in rockwool, planted in a coco mixture. and these two Blue Afganis specifically seemed to have what i thought was a cal-mag issue, (specifically mag, but its not taking up nutrients from the lower growth, and the new growth seems really weak). While watering them the last 2 times, ive been giving them some cal mag. The coco mixture contained 4-4-4 all purpose, worm castings, along with some kelp and glacier rock dust, (lightly). I just want to see if anyone can identify 100 percent before i try to feed it something with more nitrogen, i've been PHing my water to 6.0.
 

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OneMoreRip

OneMoreRip

Well-Known Member
id check ph and ec/ppm of the medium before making any other changes. (700 ppm/1.3 ec start to finish imo)

also if using ph down to get to 6.0 id go 5.7-5.8

and make sure ph pen calibrated

no idea how well your soil mix is.
 
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S

solo.dolo

Member
soil mix is coco, around 20-25 percent perlite, some 4-4-4, and glacial rock dust, worm castings, and a tiny buit of kelp. been watering originally at 5.8 but i figured it could be a magnesium issue, (which is wasn't,) so i am back at 5.8. i unfortunately don't have a ppm pen. i've been told russet mites, cannot see a thing although im told they are smaller than spider mites, wierd how they only affected the specific strain, although maybe their mother carried them.
 
myke

myke

Well-Known Member
I have the same mix but with promix no coco.I add ewc with the 444.I feed straight tap water at 7.2pH approx 200ppm hard water.
Sometimes a clone will shrivel like your pic after transplant.Just too hot. Have you tried upping your pH?
 
G

Green Refuge

Well-Known Member
solo.dolo said:
soil mix is coco, around 20-25 percent perlite, some 4-4-4, and glacial rock dust, worm castings, and a tiny buit of kelp. been watering originally at 5.8 but i figured it could be a magnesium issue, (which is wasn't,) so i am back at 5.8. i unfortunately don't have a ppm pen. i've been told russet mites, cannot see a thing although im told they are smaller than spider mites, wierd how they only affected the specific strain, although maybe their mother carried them.
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You gonna need a 100x microscope for russet. I have similar symptoms which I thought were russet but after close inspections with 200x I can't find a single mite. It's either PH or disease.
 
OneMoreRip

OneMoreRip

Well-Known Member
solo.dolo said:
soil mix is coco, around 20-25 percent perlite, some 4-4-4, and glacial rock dust, worm castings, and a tiny buit of kelp. been watering originally at 5.8 but i figured it could be a magnesium issue, (which is wasn't,) so i am back at 5.8. i unfortunately don't have a ppm pen. i've been told russet mites, cannot see a thing although im told they are smaller than spider mites, wierd how they only affected the specific strain, although maybe their mother carried them.
Click to expand...
id try not ph’ing a plant or two, assuming your tap is around 7. I didn’t realize, it seems like you are ~organic soil which requires higher ph.

i chech ph of my soil with regular ph pen (for liquids), gently press into moist/wet soil just until get a reading.
 
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S

solo.dolo

Member
OneMoreRip said:
id try not ph’ing a plant or two, assuming your tap is around 7. I didn’t realize, it seems like you are ~organic soil which requires higher ph.

i chech ph of my soil with regular ph pen (for liquids), gently press into moist/wet soil just until get a reading.
Click to expand...
Sorry for late ass replies, had a long week, i think my ph was to low, i was pretty much ph-ing for hydro, i might have even killed alot of the microbials
 
S

solo.dolo

Member
myke said:
I have the same mix but with promix no coco.I add ewc with the 444.I feed straight tap water at 7.2pH approx 200ppm hard water.
Sometimes a clone will shrivel like your pic after transplant.Just too hot. Have you tried upping your pH?
Click to expand...
Upping my ph is most likley my resolve, thank-you so much, i grow soil usually at 6.5, so i thought i had to drop it for coco, was definitely wrong
 
D

drbudkilo

Member
can you account for all 12 basic minerals needed ( not including Chlorine) ?
the top of the plant indicates IMMOBILE mineral issues if its minerals
( SO NOT N P K Mg )
what are your trace content feed like ?
 
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