Can someone tell me what this is?

Ganggreen99

Active Member
I just flipped to flower and my fan leaves are starting to get brown spots on them with crispy tips. I PH water to 6.3-6-5 and use 3-5 ml calmag with every watering. Not sure what's going on I need help asap as I just flipped to flower 3 days ago. Thank you attached are picturesPXL_20210329_125853375.jpgPXL_20210329_125844187.jpgPXL_20210403_135029407.jpgPXL_20210329_125846922.jpg
 

Ganggreen99

Active Member
I'm growing in soil FFOF soil. I'm using Fox farm big bloom grow big tiger bloom 2/3 recommended dosage for all three nutrients. And using 3-5 ml calmag. I use two ts 1000s by mars hydro and I'm growing in a tent. Temps are 82 during the day and 75ish degrees at night. PH 6.3-6.5. It was only on older big fan leaves but starting to show on new growth as well. I really could use some help thank you very much
 

myke

Well-Known Member
The edges burning is either too much food or an imbalance caused by ph too low. Have you been feeding this food since it was small? What’s your schedule. Like feed water water feed. Do you ever get a good runoff when you feed?
 

Ganggreen99

Active Member
Yes I have been giving same food for past 5-6 weeks. I have just been increasing dosage slightly. No I do not usually water until run off. I have been told I didn't have to since nutrients are organic. My schedule is feed 2/3 recommended dosage of nutrients followed by water only with 3-5 ml calmag only. Followed by feed and water again only skeleton l alternating the two back and forth. Should I be getting a run off from now on?
 

myke

Well-Known Member
Every 3 or so feeds you should get a little runoff to avoid any build ups. Don’t let the plant suck it back up so elevate it and mix a feed a little less then you normally do. Let ph go a little higher say 6.8-7. Feed until you get a good runoff. You may have to water slowly first so it absorbs then give it more so you get a runoff. This should take care of any imbalance you might have. What is your water?
 

Ganggreen99

Active Member
Thank you man I really appreciate it I'm going to try this to see how it works out for me. My water out of tap is around 7.6-8ish. Do you think it has anything to do with calcium? Should I add more or less calmag? And so should I go back to 1/2 strength nutes? Or water more in between feedings?
 

myke

Well-Known Member
All symptoms could be the imbalance. Only way to find out is get some good runoff and see. Yeah lower your food a little. Your using 3-5 ml calmag per gallon?So you don’t need more. Upping the ph should help the Ca deficiency. I think a lot of people in FF don’t ph there water at all. I grow in my own soil and don’t ph. My tap is 7.3 ish.
 

Ganggreen99

Active Member
After mixing nutes and calmag I ph water to 6.3-6.5 if you think it should be higher I will try that. I honestly haven't had a problem until now
 

DoubleAtotheRON

Well-Known Member
Quit being a "helicopter grower"... it's just growing pains, unless your whole plant looks like that. You just flipped, they are going to go through a transition. Thanks for the finger prints.. gonna go rob a bank now... and put some lotion on those dick beaters..... Ok, now that the comedy is out of the way...... You say you PH your water to 6.3-6.5... What you have going in, and what your soil (I assume) is buffering it at are two different things. See my post "Hard PH Corrections", and you'll see that even tho you may be feeding in at that, it may not be "Buffering" at that. You really need a good soil probe meter (a good one) to see whats really going on at the root zone. Slurry tests, and run off tests are really unreliable. If you're roots are really at lets say 5.5, then you're going to have nute uptake problems... I feed in at 1000ppm from clone to harvest, pedal to the metal, but I have them balanced out in the zone at 6.5-6.8.... run off will tell me differently when I test it. This is all assuming you're in soil.
PS... Im usually not a smart ass..... feeling spunky tonight. Keep up the good work bud!
 
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