Burn, deficiency, lockout from ph?

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AnOldColdSoul13

AnOldColdSoul13

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Okay so i started seeing signs of what i believed to be magnesium and potassium deficiencies, especially the magnesium. Maybe with some nitrogen burn also. A couple red/purple looking limbs and other characteristics i read about regarding to mag deficiency. I read that mag def' is the most common def' during flowering. I also seen where low ph can cause mag lockout. I checked my runoff ppm and ph. Ppm was lower than the feed ppm. Ph was super low.. like 4.0 - 5.0 range.. When i mix my feed up, the ph is pretty high, about 7.2 or so, therefore i would use ph down by GH to bring it to the 6.0 - 6.5 range.. Im using The ph perfect line from A.N. so i guess i shouldnt have been adjusting, even though the feed's ph was high. So a few days ago, i stopped adjusting the ph of my feed. It doesnt seem to have gotten any better. I dont know if its had enough time for me to see a change yet either. Im growing in coco/perlite with some peat, but not much. Im thinking that i need to flush with either straight ph'd water or ph'd water with very low ppm of nutes, then continue on as usual. Being that im not 100% sure as to whats goin on, i feel like flushing isnt a bad idea, unless my problems are actually 100% deficiency issues. Then flushing would be a bad idea.. Throughout my plants' life ive been increasing feed at signs of deficiency, they get better, then it happens again from getting bigger and hungrier every day, and i increase again. Thats worked well up until now. Theyre autos and theyve been flowering for a couple weeks now. I also added a bigger light to my tent, making me wonder if they are hungry as hell from the amount of light they are getting. Im tagging @Aqua Man because i would really like to know your opinion on the matter. Anyone's opinions would be greatly appreciated though. Thank you
 
AnOldColdSoul13

AnOldColdSoul13

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Okay so i started seeing signs of what i believed to be magnesium and potassium deficiencies, especially the magnesium. Maybe with some nitrogen burn also. A couple red/purple looking limbs and other characteristics i read about regarding to mag deficiency. I read that mag def' is the most common def' during flowering. I also seen where low ph can cause mag lockout. I checked my runoff ppm and ph. Ppm was lower than the feed ppm. Ph was super low.. like 4.0 - 5.0 range.. When i mix my feed up, the ph is pretty high, about 7.2 or so, therefore i would use ph down by GH to bring it to the 6.0 - 6.5 range.. Im using The ph perfect line from A.N. so i guess i shouldnt have been adjusting, even though the feed's ph was high. So a few days ago, i stopped adjusting the ph of my feed. It doesnt seem to have gotten any better. I dont know if its had enough time for me to see a change yet either. Im growing in coco/perlite with some peat, but not much. Im thinking that i need to flush with either straight ph'd water or ph'd water with very low ppm of nutes, then continue on as usual. Being that im not 100% sure as to whats goin on, i feel like flushing isnt a bad idea, unless my problems are actually 100% deficiency issues. Then flushing would be a bad idea.. Throughout my plants' life ive been increasing feed at signs of deficiency, they get better, then it happens again from getting bigger and hungrier every day, and i increase again. Thats worked well up until now. Theyre autos and theyve been flowering for a couple weeks now. I also added a bigger light to my tent, making me wonder if they are hungry as hell from the amount of light they are getting. Im tagging @Aqua Man because i would really like to know your opinion on the matter. Anyone's opinions would be greatly appreciated though. Thank you
Here are some more pics. 2 Orange sherbet autos at 49 days old and 1 Banana Kush auto at 42 days old. Although the Banana kush auto is a different strain, it always shows signs of issues after the Orange sherbets do, leading me to believe my issues have been deficiencies from the plants needing stronger feed. I increase strength and issues get better everytime. Im not sure that thats the case now. I defoliated some about 3 weeks ago because i had a cluster fuck of entangled leaves and my tent filling up. Thats the only reason i defoliated. I know its not a great idea and need to be strategic on how much and which leaves to clip. So im extra worried now because i dont have as many leaves to go around and i need to fix this quick
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Aqua Man

Aqua Man

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My opinion is PH perfect causes issues when you treat it like normal nutrient. You should not be ph adjusting or adding cal mag to it. Is designed to be used with RO and nothing else added.

A ppm of 600-800 and getting good runoff is how it should be used IMO.

I would mix up 400ppm and flush the media well at least 2x the pot volume, trim up some of the bottom largest least for air flow.
 
AnOldColdSoul13

AnOldColdSoul13

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My opinion is PH perfect causes issues when you treat it like normal nutrient. You should not be ph adjusting or adding cal mag to it. Is designed to be used with RO and nothing else added.

A ppm of 600-800 and getting good runoff is how it should be used IMO.

I would mix up 400ppm and flush the media well at least 2x the pot volume, trim up some of the bottom largest least for air flow.
Okay thank you very much. 1 more question so i dont make things worse by misunderstanding.. When havin to flush coco, should i turn right around and feed it my normal strength feed? basically pushing salts and build up out with the flush and then feeding so it isnt hungry? Or.... Should i flush and then wait till my next feeding before feeding normal strength?
Ive been feeding once every 24 hours to about 20 - 25% runoff. It seemed like when i was feeding smaller amounts more frequently, my plants had that over watered look. Ever since i started feeding once a day, the plants have started looking a lot better... other than these current issues im having. Thank you for you help
 
Aqua Man

Aqua Man

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Okay thank you very much. 1 more question so i dont make things worse by misunderstanding.. When havin to flush coco, should i turn right around and feed it my normal strength feed? basically pushing salts and build up out with the flush and then feeding so it isnt hungry? Or.... Should i flush and then wait till my next feeding before feeding normal strength?
Ive been feeding once every 24 hours to about 20 - 25% runoff. It seemed like when i was feeding smaller amounts more frequently, my plants had that over watered look. Ever since i started feeding once a day, the plants have started looking a lot better... other than these current issues im having. Thank you for you help
That's the issue with feeding less often... things look good until they aren't.

Flush with light nutrients. Then feed no more than 800ppm. Test the runoff number to see if nutrients are building up... with ph perfect toss the ph meter to the side and go by ppm.
 
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