Burning and curling, cannot figure it out

TYPE-X

Well-Known Member
Heres a little background. Growing in soil, 5 gallon buckets, or my big tubs, it doesnt matter. I have been through general hydro nutes all the way to dutch masters, doesnt matter. Using cfl's, T-5's, Proceon 100 led, doesnt matter. Nute levels from 400-800 in veg and bloom, doesnt matter. So i moved thinking it was my house. Nope. I changed air pumps, hoses, stones, fans, baskets, and hydroton. I have tried several strains, and temps, different light schedule and all. I have no fucking idea what's going on. I cannot find any pics that look like this particular problem. It has to be something im missing. Please help. And hello to the people i havent spoken to in a while. Also, the ph is 6 now but i have tried different levels, and the ppm is on the 700 scale. the led pic has it to but you just cant see it with the red/blue spectrum so heavy
 

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Jonus

Well-Known Member
Also, the ph is 6 now but i have tried different levels
Looks to me like a combination of pH spotting and too much nitrogen (nitrogen toxicity). When you say 'the ph is 6 now' what was it before.

When in the growth cycle or bloom cycle does the yellowing and spotting start?
 

smokeybandit22

Well-Known Member
to me the nitrogen looks fine. I agree with the ph spotting, but would like to know what type of water. It does look like an mg deficiency, although not exhibiting the 'normal' telltale signs. mg does get locked out around 6 ph.
also what type of ph down or acid are you using and have you changed that as well to something different?
 

TYPE-X

Well-Known Member
The water is tap water. I tried distilled a few grows ago but i never tried it from the go. i have access to an RO, so i am going to fire that bitch up this weekend for a water change out. I mean 6.0 now as in this grow. The last grow had 5.5. I am using general hydro ph up/down.
 

smokeybandit22

Well-Known Member
hey Jonus, I use that site too-you may be right but I find that alot of their pics for diff deficincies resemble other deficiencies as well. for example, I know there are a bunch of the same pics in diff categories. from what I have seen, n toxicity usually causes very deep dark greenness in the leaves along with spindly new growth at times.
 

smokeybandit22

Well-Known Member
man this is a toughy. that barely visable spotting looks like Calcium def. those twisted tops look like mg def. but everything you are doing is spot on you say.
have you ever tested the ppm's of your tap water? there could be an excess of some mineral in there that is causing this. city or well water?
also, it could be possible that your nutes have or your plants do not like as much Potassium:
cut and pasted from sticky:
When you have too much Potassium in your soil, it can lead to big troubles, like salt damage and acid fixation of the root system, as well as too much potassium can cause a calcium deficiency. Your fan leaves will show like a light to a dark yellow to whitish color in between the veins. Due to a molecular imbalance, potassium toxicity can cause a reduced uptake and lead to the deficiencies of Mg, and in some cases, Ca. Also leads to the other nutrients to not be absorbed properly leading to lots of other deficiency such as: magnesium, manganese, zinc and iron and can cause problems with calcium as well.

I guess it could make sense if you had too much P you would get burning like you have and than the other deficiencies.

can you post more pics-diff angles-whole plant-looking from top down?
 

TYPE-X

Well-Known Member
My water is city water, and the ppm is 1-200 on the 500 scale. The very first 2 led's. the plants under the t-5 are northern lights and blueberry, the led has mixed. Here is a pic from the last grow with the problem. and the single bud shot i tossed in just because it's sexy
 

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smokeybandit22

Well-Known Member
**SECOND SET OF PICS**man I dont see a damn thing wrong in these new pics-look like they are where they should be for flowering-like if that first pic is ripe for the picking than that is the epitome of what a final plant should look like-complete deficiency of just about every mobile and immobile nutrient.

**FIRST SET OF PICS**
the first set of pics-those look like they are about to enter flowering, yes, no? if yes, it could be you are changing your nutes/feeds to soon or not enough. do you change your feed before and during flower?
Im sure you know the fact you have a very high level strain that obviously was bred for the optimal conditions, like almost crazy, born from the highest level that science could offer and could just be they are supersensitive to diff things. It is my feeling that there is a Calcium issue that is either in the water or the nutes you are using that for some reason she is just very weird about Calcium and too high levels are throwing off their sensitive balances. or you could be just cutting the nutes to early and not giving enough during veg-maybe 800 is not enough if they are sharing the same res, which I persoanlly hate.
as opposed to outdoor strains that can take just about anything you can throw the book at.
I think sep res for each although more difficult will only add to you situation. flushing rinsing and cleaning the res at least every other week during veg would help them too if not already doing. I have seen manually lifting them out of the res and giving the roots a bath with good ole tap in a spray bottle and try to leech out any excess salts-

or a pottassium issue. during veg, especially from clones, throwing in some bloom fert is always a good idea.

to me, I would use the Ro water, and add bloom to the veg girls, and increase my ppm's more of the grow with the same n and more iron, cal, mg etc, espceially with your RO water. and also raise the lights like an inch or 2.

where did I go wrong?
 

TYPE-X

Well-Known Member
Yeah the second set of pix doesnt show the burning as bad as the first but its there. i am picking up the ro tonight and i am going to do the change out tomarrow. i need to see if my nutes have trace minerals in them or not, if not i will go to the grow store and get what you suggested. i am going to see if i can get the university to test my water and get me all the levels of everything. i will let you know and thanks for the info.
 

smokeybandit22

Well-Known Member
cool keep us posted. do you change feeding going from veg to flower? it look slike you may be dialing out then nutes abit early. and I would try higher ppms ending veg and going into flower and keep steady 800-1000 until middle of flowering
 

TYPE-X

Well-Known Member
Well the RO water seems to have slowed the burning down real fast. seems like that has helped more than anything. So far so good. Smokey i have tried to adjust ppm during transition and still no luck. i am going to take 20-30 more clones then change the water crank nutes to 1000 and get ready to flower.
 

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diemdepyro

Well-Known Member
I have seen this with the hydro solution being too cool. What is the temp of the hydro solution?

(i am assuming that you use cal-mag)
 
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