some advice would be appreciated

These are some pics of my ladies. Two GDP, two tahoe thunder, and one girl scout cookies. (I know I should stick with like strains that like the same environment but I did not pick them out so not my mistake.)

I have read a lot of the other threads to narrow it down. I dont want anyone to think I didnt look for a solution first before making a thread.

My guess is minor early stages of zinc, magnesium, and calcium def or a combination of them. Or maybe an abundance of something that is blocking those crucial nutes out? Not sure and I have read a lot about growers ruining crops because of mis-diagnosis so I want to be absolutely sure of the next best step before I do anything. The deficiencies seem minor as far as I can tell but I want to obviously tackle it now than wait for it to get worse. If anyone can help me out I would appreciate it. And I really dont think its heat or humidity. And I know at least the GDPs have good roots I think because they seem very lush but the other plants seem to grow a bit slower and not as much foliage. Also at least one in not both gdps Im pretty sure have zinc def due to the shiny top leaves is this correct? Mostly I have been trying to figure out the curling leaf edges. That was worse before on all of them and then I raised my lights about another 4 inches and made sure the fan was hitting them indirectly and it got better by a lot but still there a bit and nothing else seems to work so ive narrowed the curling to another def of some kind but even after reading all morning im still not sure because it seems like a lot of different things can cause that. Any ideas? I think overall they look good. The cookies (the one with the least nodes) had bad nute burn before and I corrected it and havnt given it any water or nutes all week and it seems to be coming back nicely. Ill put a before and after pic of that one. At the moment i am only giving nutes to the gdps and one of the thunders because the other thunder and the cookies i think are too young for nutes as i learned from feeding the cookies right when i got it. Im using a nute solution of 3-4-1. Should i change this for the next feeding? I got to that mixture just by trying to read my plants so im not entirely sure if they need more or less and of what at this point. Also got one pic of a newly germinated cherry ak47 seed, and onother next to it that has not broken soil yet. Hopefully one of them will come out female and make a good mother.let me know what you guys think. This site is really helpful and I appreciate all help very much.

I was reading a bit more and was thinking, abundance of N and high ph? The bottom fan leaves are nit like black but dark green and seem to be getting darker. And i read that shiny leaves is a sign of zinc def and that high ph can lead to zinc def, yes?So tone it down on the nutes, maybe flush for a few days and start feeding again with new nutes? Someone please help, curlings getting worse.... :/

well i guess ill post an update even though like 180 sumthin views and not one response... :/
considering im not really getting any feedback i am still thinking ph. used what little money i had and ordered some ph up & down. will be here wednesday but will that be fast enough? the plants are getting worse and i know ph fairly crucial and its def too high i think (ph testers are like 200 bucks for the ones worth buying. im broke as a joke.)
im just afraid that by the time the products get here it will be too late...
could someone at least humor me with a response? im worried :/

put vents on your grow box walls to reinsure air circulation,it`s definatly a nute burn so you would need to flush and after water about 1 week with 6.5 ph water, its horrible to have a lock down i feel you,check the ph of water runoff after watering to ensure this kind of problems,if you see diference and she is feeling better begin useing nutes but very light

Thanks funds are slim but should be picking up soon. will probably get a tent separate from the closet for vegging, with proper ventilation.
I am getting the ph reader in a few days but for now I ordered some Ph down and up. used like.... a drop, of down to a gallon just water, no nutes. i know its concentrated so i was sure to be careful. they don't seem to be making a miraculous recovery, but they def don't seem to be getting worse. I will be relieved to be able to actually read the ph for myself soon, which i feel stupid for not putting money on earlier. but i think they will live until then and ill be sure not to miss that detail again. heheh

Proud to announce I am finally in the good graces of cali state law. fully legal.

I see burns and heat in general there ! You went a little harder on them !!


Flush your system with plain, pH'ed water. Give your plants some time to recover, and start them with a fraction of the nutrients you were giving them before working your way up to more nutrients. Many nutrients come with instructions to feed your plant more nutrients than most plants actually need. It's good business for them if you use more nutrients. However, in my experience it's a good idea to view the feeding charts that come with nutrients as the maximum amount of nutrients and actually start with much less.

Find a way to lower the temperature and/or increase the circulation in the grow room or grow area if heat is the problem. Having a small fan blowing over the tops of your plants will help prevent hot spots from forming directly under your grow lights. If your marijuana plants are just getting too much light, try removing some of the lights or moving your lights further away from the tops of the plants.
When learning how to weed, it's best to try to keep things at a comfortable room temperature at all times for optimal growth. If it's too hot for you, it's probably too hot for your plants.



Reduce the Nitrogen your plant is getting! Reduce the amount of nitrogen that is being fed to the plants. If you are feeding extra nutrients, cut down. If you are in the flowering / budding stage, make sure you're using a formula that's specifically meant for flowering, or else it will have too much nitrogen.
If you are not feeding extra nutrients, you may have "hot" soil that has been supplementing with extra nutrients. In that case, flush your plants with filtered, pH'ed water to help leech out the extra nitrogen.

Effected leaves likely won't recover, but you should stop seeing the problem spread to more parts of the plant.