kowato12
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I am using tap water, but I'm adding some pH down (acidic solution) to it so the pH looks around 6.0.Are you using tap water in your humidifier? Water is the PPM of your tap water?
Also not sure how to calculate the PPM of my water. Should I get something to test that? Also would using a Brita to filter the water be useful?Are you using tap water in your humidifier? Water is the PPM of your tap water?
the white mark on the last picture on the right side is from me rubbing one of the white dots. I can't spot any mites (i sprayed neem oil today just in case). I really believe its what ^ said. seems to increase when the humidifier is on, hopefully its just deposits from the humidity on the leavesLook like wall plaster, but maybe powdery mildew from last picture right side or maybe mites, try use forbid before flower
Actually...If it came from humidity might look like larger area, not a spot , I don’t know if u could understand . By the way , why do u use the humidifier?the white mark on the last picture on the right side is from me rubbing one of the white dots. I can't spot any mites (i sprayed neem oil today just in case). I really believe its what ^ said. seems to increase when the humidifier is on, hopefully its just deposits from the humidity on the leaves
Actually...If it came from humidity might look like larger area, not a spot , I don’t know if u could understand . By the way , why do u use the humidifier?
Then probably white powder, ez to fix on early, try close every fan after light off , not humidifier.i use it to keep a humidity between 40-60% but i'm about to turn off my humidifier as the humidity in my tent seems to be around 40% on most days anyways.
idk, i don't have any reason to believe its spider mites as theres no damage to the leaf as soon as i wipe off the wipe "deposit". hopefully turning off the humidifier will change all this
Then probably white powder, ez to fix on early, try close every fan after light off , not humidifier.
That why your spot looks small, probably your plant are small?
thanks!!!! going to purchase one right away. I live in Los Angeles so I have a feeling its something to do with the tap water (since i'm not filtering it, only changing the pH slightly). I just wiped all the tiny white spots off the leaves gently, and turned my humidifier off. going to see if white spots are back in the morning and hopefully they aren't.@kowato12,
Look on amazon for a PPM Meter, or TDS meter rather. Some reliable ones are like Bluelabs.
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From what i gather from your pictures it seems like you have the same issue i do. I have 300PPM Tap water, and when i use tap water in my humidifers i will get a white buildup on my plants, kind of like small little white rocks. When you rub it off and its on your hands, it feels like your rubbing sand, rock, or something gritty together i guess, you can smoothly wipe your fingers, you get a weird feeling on your hands. ive looked at it under a 1200X microscope to verify.
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By looking at this, you would think i have a case of powdery mildew arising. Thats not the case,i have resolved this issue buying distilled water for my humidifiers.
Im not saying, dont be on the lookout for PM. As growers, we should always be watching for error, keep an eye on it. But, if you find out what ppm your running, and it runs high, i would say humidifier dust is your case too.
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Stay on the lookout, dont keep track of it. Look for growth if you see more arising, maybe grab a microscope and compare it to the pictures above.
fyi i just wiped off the white spots for the majority with a glove and turned humidifier off. i did that earlier today and they seemed to come back after 8 hours but now that the humidifier is off i'll see in the morning if any white spots came back. here's a picture of my leaves after i wiped them off.
thanks!!!! going to purchase one right away. I live in Los Angeles so I have a feeling its something to do with the tap water (since i'm not filtering it, only changing the pH slightly). I just wiped all the tiny white spots off the leaves gently, and turned my humidifier off. going to see if white spots are back in the morning and hopefully they aren't.
speaking of water ppm, could this affect my plant when i'm watering it as well?
Looking clean, sounds like a decent idea. Keep us updated with results.
So when it comes to Tap water PPM,normally alot of it is cal-mag, which essentially, is good for your plants, so it could be decent to have higher tap water ppm, but ideally i believe the happy number is lower, around 150ppm or so.
and yes, i would say, being in los angeles, your water is probably more on the hard side. Not a bad thing, i use hard water for my grow and have had no negative effects as far as i know. but like i said, its been awhile since ive researched that magic ppm number for tap water, and i dont remember. (i just use my tap ppm and go on with my day)
So, when you go to add nutrients, and lets say you have 1000ppm nutrient solution, youll need to remember that X amount of that is tap water PPM of majority cal-mag.
Looking clean, sounds like a decent idea. Keep us updated with results.
So when it comes to Tap water PPM,normally alot of it is cal-mag, which essentially, is good for your plants, so it could be decent to have higher tap water ppm, but ideally i believe the happy number is lower, around 150ppm or so.
and yes, i would say, being in los angeles, your water is probably more on the hard side. Not a bad thing, i use hard water for my grow and have had no negative effects as far as i know. but like i said, its been awhile since ive researched that magic ppm number for tap water, and i dont remember. (i just use my tap ppm and go on with my day)
So, when you go to add nutrients, and lets say you have 1000ppm nutrient solution, youll need to remember that X amount of that is tap water PPM of majority cal-mag.
Check out an article posted on Royal Queen,
Cannabis & Water Quality Part 2: PPM & EC - RQS Blog
Water quality is an essential consideration when it comes to advanced cannabis growing. In part two of out guide, we look at PPM and EC.www.royalqueenseeds.com
Looks like tap water is evaporating on your leaves and causing the white deposits. I would leave the humidity high at least 60 percent until you get about 1/3 to 1/2 of the way thru flower. If you can look up VPD, Vapor pressure Deficit and try to follow based on your temperature in the grow. Also someone mentioned to turn off fans and close vents with lights out. Please do not do this. It will create a humidity spike and could cause PM. Pm does not like to grow in conditions that have a relative humidity under 50 percent. Once your buds are about 1/3 or 1/2 thru the flowering process you need to keep mind of the humidity. PM and Bud Rot love the high humidty and bud rot has a nasty habit of forming on the best colas. Good luck with your grow!!!!!!!!!!
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