steezy wonder
Active Member
I have searched and searched. I've added cal mag, I've done Epsom salt, I've raised my ph from 5.8 to 6. I can't figure it out. Have ebb and flow using advanced nutes, purple erkle, and pink kush. 
Is this a cal mag issue, please help
- Thread starter steezy wonder
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steezy wonder
Active Member
I've searched but can't find rust spots like these or solutions, only seems to effect tips and is moving to new growth :/ I hope I can fix it soon.
steezy wonder
Active Member
The more I look at potassium def you may be right. I came from coco so I'm always thinking cal mag. Some of my other leaves look similar to ones I see in Google images.
kenobi
Well-Known Member
Right, you need to fix that asap. There's 3 stages to deficiencies and you're in the last stage (according to this guide)
steezy wonder
Active Member
Yeah I just added some nutes with more k, I have purple stems, not green so with your help I'm leaning towards potassium def.
steezy wonder
Active Member
I think I'll buy some deuce deuce 0 0 22 tomorrow, added a little ff grow big
polishpollack
Well-Known Member
doesn't advance have enough potassium already? are you sure that it's P def that's the problem? you haven't given much info about your grow. what ppm do you fert at? how often? have you done this before? what's the room temps like? what nutrients are in advanced?
steezy wonder
Active Member
I would think advanced Does. Using their bloom, big bud, b52 cal mag, bud candy I also have Fox farm bloom but not using in there. My Last grow was perfect. Temps are 68 at night 78-83 lights on. C02 is running. About 3 weeks into flower. Another plant is slowing slow stunt growth
kenobi
Well-Known Member
no def that im aware of show the same signs as another def. as far as i know, you plant knows what it needs and when it needs it... just look up all the def in cannabis and compare your findings to what you have. im sticking to P. i could be wrong, lord knows i have been in the past. but i had a similar prob with P and it showed the exact signs your plant is showing. if the P you added doesnt stop it from showing up on new growth id saying its something else. give it about a week. hope this helped dude, good luck
phil k
Well-Known Member
or y
its not a deficiency the PH was a issue but also how many times are you flooding the system? it looks more like your getting lock out from salts in the system.
sunny747
Well-Known Member
Looks like K to me...
One thing that I have recently noticed is that there are so many additives in addition to the veg and bloom in most lines of nutes. Without them a grower may run into problems. For instance the Bloom booster KoolBloom. Without that the base nute may not have enough PK.. Just a thought since always have run into under-nuting issues in the past.
Either that or you are just not delivering enough PPM. I use a cheap TDS to make sure I am not doing this by accident. Another thing I have found to help is to cap my pots with fresh soil. You know how the soil gets smashed down and you end up with a few inches of room in your pot? I just fill it back up during flower. Plants seem to like it.
One thing that I have recently noticed is that there are so many additives in addition to the veg and bloom in most lines of nutes. Without them a grower may run into problems. For instance the Bloom booster KoolBloom. Without that the base nute may not have enough PK.. Just a thought since always have run into under-nuting issues in the past.
Either that or you are just not delivering enough PPM. I use a cheap TDS to make sure I am not doing this by accident. Another thing I have found to help is to cap my pots with fresh soil. You know how the soil gets smashed down and you end up with a few inches of room in your pot? I just fill it back up during flower. Plants seem to like it.
kenobi
Well-Known Member
IM SORRY, IVE NOTICED THAT IVE BEEN SAYING P, WHAT I REALLY MEANT WAS K(POTASSIUM). DIDNT MEAN TO MIX ANYONE UP... THIS IS THE SHEET I WAS TALKING ABOUT OP.... DOWNLOAD IT, SAVE IT, PRINT IT OUT AND HANG IT ON YOUR WALL LOL... THIS SHIT HELPED ME OUT SO MUCH WHEN I WAS STARTING OFF.
polishpollack
Well-Known Member
steezy, why are you giving so much fert? that's your problem.
steezy wonder
Active Member
So I added some kelp and it is helping out. I went out of town so sorry for just getting back. I did a flush and just added the advanced nutes I needed, a little cal mag and that kelp. So far so good. Thank You guys.