The Info
Genetics-Limon Blanco V3 Khalifa Genetics Photo Period plant
Media- Peat,Vermuclite,and Perlite
Nutrients-Athena Pro and Mega crop One Part alternating feeds, Lactic Acid Bacteria in Brown Sugar Solution, Homemade Cal-mag(egg shells and epsom salt in vinegar), Home made vitamin supplement(multi vitamin dissolve in vinegar), Fermented plant Juice.
Ph- Water ph to 5.8
Lights-18/6 500w Led
CO2- hangs between 800-1200ppm
temp 73F
RH 65%
Soil Volume- about 15 gallons
water with nutrients every other day
Here is the issue in pics, This is in Various spots, low mid and top of plant, maybe on 5% to 10% of the leaves, but that is just a guess. No Bugs checked with magnifying glass. plant is about 7 weeks old total. Does not wipe off, seems to be inside the leaf rather than on the surface.
homemade Cal Mag is most likely the prob egg shells take a long time to break down check your run off water from the plant good chance it could have PH lock out but most likely they need some calcium for sure. you say you have same thing going on at all levels usually they steal the nutes from the lower leaves first that tells me the plant cant get what it needs new growth or old the girls need cal as i bet they are locked out
I do agree tho, in soil they can take years to break down, the chemical reaction with vinegar however takes about a week, and they were crushed to a fine powder first to speed the process up and they have been sitting in the vinegar over a month same with the multi vitamins, that also have cal and mag in them. I check the ph of my nute solution everytime, and i always hit somewhere between 5.8 and 6. I honestly think lockout is unlikely.
You could try aiming for a 6.2-6.5 PH. Your PH numbers sounds right for coco but not peat. It looks like a deficiency to me, your leaves are still dark green which tells me that it actually is lacking in something specific or it is being locked out. If it was general hunger the leaves would be more toward light green/yellow.
what goes in is as important as what comes out things happen in that pot that i have no idea how to explain i just know that it happens Nitrogen for exp 2 types we use dont know what they are called dont need to i just know one drives ph up the other pushes it down.
And my answer is I don’t know, but your PH isn’t ideal for the medium you’re using. So there’s a 50% chance you are giving them what they need but its locked out.
Agree, Run off tests in the same range as the nutrient solution.
I will give that a try, tho everything i have found online says to aim for 5.5 pH to 6.5 pH for peat where as this range is closer to what is suggested for soil, 6 pH to 7.5 pH? I also have found online the optimum pH for peat based grows is 5.8 pH, which is why i have been aimming for that, found this from mutiple sources, so I guess im just confused as to why you would suggest higher? lol
I’ve ran many many cycles in peat based mixes with hydro nutes. Always aimed for 6.2-6.5. Never saw the rust striping. Can’t vouch for what you’re reading on the web, but that is my experience.
I absolutely could be wrong for your situation, so wait for more input from other users.
I was also told that Peat and coco both are considered Hydroponic growing medium, and going by the chart i have, for hydroponic, i should be in the ideal range. Am I working with the wrong information here? Is peat considered a soil medium?
Im confused, isnt lock out controlled by pH? Unless im working with the totally wrong information, my pH should be in the Ideal range, and my run off always tests within 0.1 of the pH of my nutrient solution.
I use both because MegaCrop has some things in it that the Athena doesnt like Silica, that is why i have been using both.
Because the Muti vitamin contains some nutrients that plants need/can use that neither nutrient solution has in it. Like B vitamins.
FPJ or Fermented plant juice is basically a bunch of plants harvested locally in a bucket with layers of brown sugar and left sent for a month, more of an additive than a nutrient, its “Suppose” to pull hormones and other compounds from the plants that are suppose to encourge better growth, Its from the KNF(Korean Natural Farming) style of farming, I have been testing it to see if i notice a difference, and i should have said above, i only use it every 2 weeks, not at every watering.
It looks like low PH and/or high nutes. At 5.8 input, it wouldn’t take much for buildup that result in below 5.5 and some stess. Especially if your meter is a little off or not properly calibrated
