Hey all, I’ve got some questions and hopefully not some problems, but here it is: I’ve got some patches on some leaves, some on the inside and some on the edges. My last Blue Dream grow pretty much did the same thing. I’m in week 5 of flower. Heres a link to my grow journal (wish I tagged it grow journal) 4 ILGM Strain Grow Journal
Other than this the plants look fine. All of the issues are on the top leaves. I’m in cocoa, 5.8pH going in. Checked my run off coming out last night and Blue Dream and Purple Haze were at 6.4, Cali Dream at 6.8 and Chocolope at 5.6. Thet are all getting the same food out of the same container. Last feed was with R/O water (as always) Bio-Bizz Bio Bloom, Cal Mag, Top Max, Bio Heaven, Mammoth P and 4 tbsp molasses for around 519 ppm. I flushed the Chocolope and Cali Dream with 5.8 pH’d water and 2 1/2 tablespoons of bat guano (in case I have a P issue. What says the experts?
I think if you’ve gotten the pH straightened out and you have flushed, I would proceed with watering at a reduced dosage until you can measure the ppm of the runoff. They certainly look like they will be hungry based on those flowers. I would typically say only water at 5.8 for the time being until you get the ppms measured, but I think that will make them hungry. Once you know the ppms (I think they should be 1500-ish, no higher than 2500), you can adjust the nutes from there. In my coco, my early flowering plants have around 1000 ppm and I water every other day at 1/4 nutes.
Good luck @MickyS, your plants look great, nice work, and probably only minor corrections here to get them on the path.
One thing I have recently noticed…when I mix the nutes and ph, and if I let it sit for awhile, the ph rises. I wonder if I should mix my 6 gallons, and adjust ph, and let it sit between feedings, then recheck and adjust. I keep an aerator in my water cooler as well.
I read that the Bio-Bizz takes a day or so to do its microbial thing before everything is is usable for the plant. If this is true, maybe that is raising my pH. These nutes are really nice and I only have experience with this line (2nd grow) but I had the same issue with the first grow. Maybe I’ll try the Canna line specifically for coco next time, if I cant figure this out. I also have some PK 13/14 that I was waiting for week 6 to use.
Well, I dont know if they are good now but I’ve done quite a bit of flushing and ph’ing. On Friday they got 162ppm @ 5.8ph. Runoff was as follows:
Chocolope- 381 ppm, 5.4ph
Cali Dream 461 ppm, 5.5ph
Blue Dream 768 ppm, 5.8ph
Purple Haze 659 ppm, 5.9ph
Yesterday I hit the Chocolope and Cali Dream again to try and correct the acidic situation and got 625ppm @5.8 on the Chocolope and 593 ppm @5.7ph on the Cali Dream.
So, that Chocolope keeps floating down on the ph. The only thing I’ve added to the coco is diatomaceous earth for knats( shit is like glue when wet, never again) and some knat nix. Honestly the plants look great; I’m just thinking the flowers aren’t packing on as much size as the last grow. Week 6 of flower, so I’m due to start flushing pretty soon.
Is it normal for certain strains to have ph go low or high? Also, I was feeding every 3rd day at 500-520 ppm. Now, since Friday, I’m every other day at 113-162ppm. My temps and R/H are 61°-72°F, 41%-52% R/H. Water temp going in is 65°F. Where should my runoff be?
I have not seen or read anything that certain strains drive a pH swing. I think there may be merit that certain strains prefer different pHs. I think the driving factors are what made up the soil to begin with, how much you water, what’s in the water and to some extent how much healthy roots are taking in those nutrients and leaving behind what’s left like salts.
My runoff is around 1000ppm. I am in mid flowering. I add 400 ppm of nutes every other day. Late flowering can get up to 2000 and more, but anything over 2500 is going to endanger the plant.
