As explained above 5.8 is your ideal soil less/hydro PH it can bounce from 5.7-6.0 but I keep mine at 5.8 after much research I’ve read that it’s ideal. Some claim a minor PH swing can help being a minor stress method and strengthening the plants but I have yet to see any true data on this claim.
I have never mixed nutrients and am unaware if it causes issue, in a reservoir I assume it would including a dwc or rwdc system.
I belive your in 80/20 coco perlite but is this the same for the plant in question?
To be honest thats not enough perlite for ideal you want 40 or 50% but at least 30% to much coco has been known to have PH issues, not saying thats what it is but sharing this knowledge with you for the future grows.
I do agree the leaf is showing a what at first looks to be a PH issue I think in this case a flush would be the easiest route to rule that problem out.
Mix up a batch of 5.8 water and run two 5 gallon buckets through it. Then run a mixed batch of Jack’s ph’d to 5.8 through it until you have sufficient run off to ensure your plant doesn’t have a nutrient issue.
Try a higher ph, but otherwise I don’t worry about ppms in soil. Soil is always higher.
If nothing else, do a flush, and feed immediately afterwards if you’re really concerned. Especially if it starts to spread to other leaves.
Calcium deficiency starting. I don’t know what it is with these widows but every grow at week 3 I run into calcium issues. How often do you feed? What’s your in ppm vs out ppm?
While calcium is a common issue I would disagree (not to sya I’m right)
Calcium deficiency is spotting not an even pattern like viewed above, new growth will also start twisting.
Thanks for replying, Im going to go ahead and flush. The plant in question is probably 20-25% perlite. The other 2 are closer to 30-35%.
With FF i was alternating everyday. Feed, water/calmag, feed, water/calmag.
Should I follow the same feed schedule with the Jacks?
Im feeding full strength Jacks every day, plain water/ calmag 1 day per week? @Watt-Sun
What is your feed schedule with Jacks?
So all 3 are starting to claw pretty good. I think I am misunderstanding the Jacks feed schedule, because I was having almost zero issues for the last couple weeks.
I feed full strength jacks daily. Did you flush before you switched nutes? I’m wondering if your having a reaction between the 2 brands. As said above. A good Flush and start over. what is your Jacks PPM going in ?
Also, are the back leaves farthest from your fan also showing clawing? Or just the front ?
My understanding RO and Distilled are roughly the same thing. I bought 9 gals of distilled water. To use for the flush now, I should have said distilled, not RO.
P.S. Distilled water or otherwise zero TDS or zero PPM doesn’t really have anything in it to give a accurate pH (potential hydrogen ions), and so it could read pretty acidic by just being exposed to the air for a few moments and absorbing CO2, thereby creating a very weak carbonic acid. The point that should be noted is distilled or otherwise nearly zero TDS water, if tested for pH, won’t really keep the pH you might read. It won’t have a significant impact on the pH of what you are adding the water to, nor keep the pH if you add nutrients to said zero ppm water, and so test your pH after adding your nutrients or adding to a body of water and then letting things stabilize.
So I may be faulting myself for not giving the mixed solution enough time to adjust? I usually just mix and read it once its all mixed in, then to the plants. Ill give it 15 or 20 minutes from now on to settle and then read the ph? Thank you for that, that is something I did not know.
Stick it to the middle of a 5 gallon bucket and turn it on, stir the bucket with your stir stick avoiding the cord of course, pour in your first measured amount of nutrients while you have a good circular motion of the water going, walk away go do something else like tend your garden or whatever and come back to repeat after 10+ minutes. I often stir once more really good, this pump sucks the bits up from the bottom and chews them up helping them dissolve faster. Also room temperature water really helps.
#3 I don’t think you understand how full dry nutrients like Jack’s works, If you find your plants actually do need need more cal mag (they don’t currently) add more CALCIUM nitrate.
Jack’s fill strength is a good starting point and should work with most grows but some plants and environments are more demanding so if you need more nitrogen or calcium feed more calcium nitrate, if you need more magnesium feed more magnesium sulfate.
You can do this by feeding full strength and then just adding a bit of whatever you need and raise the ppm a bit but keeping track of the weight your adding so next feed you can add that amount rather then the standard Jack’s starting points.
The light is more of a centering issue, the light is centered, but the rack my plants are sitting on is father back than the middle, due to the floor vent. I built the rack to avoid this, but set it in the wrong way and didnt notice it.
To address your points:
Ill be picking up a kitchen scale tomorrow and using it from hence forth.
Picking this up as well.
I was, and still am not, fully understanding of dry nutrients. But what you just said makes perfect sense. Dont use additives, just add more of what I need from my baseline. Right?
Thank you for taking the time to help me out. I appreciate it, greatly!
