Phosphorus Deficiency??

Having some issues with my plants. At first I thought maybe the plants were too close to the lights. Then I thought maybe I burned the plants due to over fertilization. Now multiple plants are displaying the same issue. I believe this to be a Phosphorus deficiency at this point. I've added Jamaican Bat Guano (0-10-0) and Bio Bizz's Bio Bloom (1-2-2) as a supplement. I've done this for about a week now, which isn't exactly a long time I guess, but it appears as if things are getting worst. Please give me some advice. Also, I am in the flowering stage. 20-30% humidity to make buds frosty. I'm trying the organic approach. Attached are pics

If they were mine id cut all those bad leaf off,so the good ones below them will get more light,and feed only fresh water for a few days,or week
and start checking runoff ph,i have a couple plants looked like that about 2-3 weeks ago,now they are doing great,ive been giveing them last few days 1/2 dosage of nutes and i see new growth now,there recovering fine,above is what i did,adding some lemon juice to the water also to get ph right

Very Very difficult to offer any grower any advice, as the grower here has already convinced himself that he is correct, and has acted accordingly

...Judge ..Jury ...and ..Executioner ..Already

Next time ...and yes there will be a next time ...ask then act on advice given or simply study some more

Marijuana: Jorge's RX
http://books.google.com/books?id=WRNNS2TUB3YC&printsec=frontcover&dq=related:ISBN1878823272

vostok said:

Very Very difficult to offer any grower any advice, as the grower here has already convinced himself that he is correct, and has acted accordingly

...Judge ..Jury ...and ..Executioner ..Already

Next time ...and yes there will be a next time ...ask then act on advice given or simply study some more

Marijuana: Jorge's RX
http://books.google.com/books?id=WRNNS2TUB3YC&printsec=frontcover&dq=related:ISBN1878823272

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Damn bro....You usually give me the most helpful responses. I'm very open and appreciative of any advice given if that encourages you to actually answer my questions or give useful advice. In your opinion does this appear to be a ph issue? or something other than a phosphorus deficiency? If so I have no issues with flushing the medium and starting over. I just want some advice is all.

JoObJoOb said:

If they were mine id cut all those bad leaf off,so the good ones below them will get more light,and feed only fresh water for a few days,or week
and start checking runoff ph,i have a couple plants looked like that about 2-3 weeks ago,now they are doing great,ive been giveing them last few days 1/2 dosage of nutes and i see new growth now,there recovering fine,above is what i did,adding some lemon juice to the water also to get ph right

Click to expand...

I will check the ph asap to see if this is the issue. And I wanted to cut the leaves off, but I didn't want to harm the plant any more. I was waiting for signs of improvement before I starting cutting

JoObJoOb said:

If they were mine id cut all those bad leaf off,so the good ones below them will get more light,and feed only fresh water for a few days,or week
and start checking runoff ph,i have a couple plants looked like that about 2-3 weeks ago,now they are doing great,ive been giveing them last few days 1/2 dosage of nutes and i see new growth now,there recovering fine,above is what i did,adding some lemon juice to the water also to get ph right

Click to expand...

okay so i think i definitely have a pH issue. The first time that I've ever had an issue. In the past I drove myself crazy checking the pH only to find that the medium was neutral. I thought my instruments were faulty because not one of my plants had a single pH issue before. When I used those same instruments this time its saying I'm in the 5.0 range. What are good ways to raise the pH? and what would be a good dosage as well?

Avoid cutting anything, but your nutes, I'm saying to ask for advice if you are ever in doubt ...EVER before jumping of that ledge and acting on your own ...lol

First as you are into organics avoid any mention of Ph, really that is for the DWC guys after all how do you measure the Ph of soil, ...? runoff only gives a very rough and late indication

flush and too my blog: on flushing https://www.rollitup.org/blogs/blog32237-flush-baby-flush.html

Do not let it get too dry in there just enough to annoy the Pm angel is fine, allow your plants to recover, avoid feeding full nutes until you see an improvement

Okay. I now know my issue was Nutrient Burn. Really bad nutrient burn. I perceived this initially as a deficiency so i added more nutrients. Rookie mistake I guess......

Now I have a new issue. After heavy flushing of the medium and a little granulated lime to stabilize the pH I seem to have what I perceive to be either a nutrient deficiency or possibly (I say "possibly" because I've yet to ever see this) too much light exposure. Considering I recently had to flush the medium because of too many nutrients I am now scared to do any thing without outside consultation first. Here are some pics. Please give your thoughts and comments. **Also, I recently added a side hanging 1000 watt LED to an already existing over-head 600 watt HPS. This is why I hypothesize too much light exposure as a possible issue.**