Leaves fading and Curling, slower growth

Hey all, if anyone has advice I'd love it! Sorry for the trouble, tried to do the stuff from the pinned threads, hope I just missed something obvious.

I have 5 LSD fem plants from ILGM. One of the plants has been having trouble for a few weeks and I have tried several things. At first I thought it was over watered because of the way the leaves are curling, but that curl has not gone away even without being watered for long enough that the healthy remaining leaves ragged down. I flushed with dechlorinated water and fed just plain water for a week with no improvement. I tried a small dose of CaliMagic from GH with no improvement. I have stopped feeding it at all and am just watering it. It doesn't get worse very fast, but it is definitely starting to look like it is 2 weeks or so behind the others and might not make it if left alone.

The other plants all got very minor tip burn from a bump in feeding 2 weeks ago but with adjustment it has not progressed on any of the others. They all look healthy to me.

They are inside a tent with 2 cheap blurples that pull ~230 watts that are a foot from the tallest plant's main cola, 18 inches from the rest
Humidity fluctuates between 40-50
temps are pretty stable at 68-72
Soil/perlite mix
Unknown PH Just Using tap water

Nutrients are the dealzer micro, bloom, grow line fed alternating with a plain watering

Sorry if I missed anything, and sorry if I forgot some information. Thanks in advance!

You have to bite the bullet and get the means to test your ph. A bluelab PH digital meter is a little expensive but worth the investment.

Werp said:

You have to bite the bullet and get the means to test your ph. A bluelab PH digital meter is a little expensive but worth the investment.

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Yeah, I have a pen and ph up/down ordered, but my deliveries are delayed. I may not have it for a few weeks. I agree, it was not smart to not have these tools in general, but all the others were doing fine so I figured it couldn't be a ph thing so I waited too long. Stubborn runs in my family >.<

Does anybody have opinions on this? If it looks like a ph issue is there a way to try and diagnose whether it is high or low while I wait for my pen to come? I am pretty new, so I don't have a gut sense for problems like this. This one plant isn't super important as the rest are healthy and looking to finish uninterrupted, but I sure would like to figure this lady out before my next grow for the knowledge.

The chattered, yellow leaf edges suggest you're short on K...the very dark green center of the plant and bud growth suggests plenty of N, as might the clawed leaves. You may also be a little short on Mg. At this point in your grow, you'll need to be careful and weigh out the risks of trying to fix the issues vs. the ensuing harvest date. My point being you may be too far to do too much at this point, except take notes and use this as experience for your next go round. Good luck.

CannaCountry said:

The chattered, yellow leaf edges suggest you're short on K...the very dark green center of the plant and bud growth suggests plenty of N, as might the clawed leaves. You may also be a little short on Mg. At this point in your grow, you'll need to be careful and weigh out the risks of trying to fix the issues vs. the ensuing harvest date. My point being you may be too far to do too much at this point, except take notes and use this as experience for your next go round. Good luck.

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That's all pretty interesting information. While it may not be the answer I will probably just keep poking at it while I wait for ph pen, and try to adjust the nutrients. I am happier to use this lady as an experiment and experience than she might like. She is on schedule to get chopped with the others because of space and plant limits anyway. Might as well go all frontier doctor in the hope that a lobotomy IS the cure

Thanks for your suggestions!

Overfed. Any deficiency is more than likely caused by nutrient antagonism caused by overfeeding. As for the pH, It says "pH Perfect Technology" right on those bottles of Advanced Nutrients. So I don't understand why people are mentioning pH... (sarcasm).

Hey guys, an update on her. She was probably locked out because of the ph, so I gave her a little tlc. Before gracelessly snapping the main stem right below the cola, bending a bunch of branches and shoving her into my little 1x1x2 because the others finished before her. I forgot about it for almost a week, and the flushing then feeding ph'd water had helped a ton. Aside from some leaves burning because she is shoved against the light, I'd say she looks better than she did before. Thanks for the advice! :]

Just gonna jump in on this one if you don't mind . I don't have a clue whats up with yours as this is my first plant . But do you know what's up with mine please ?? As you notice the couple of leafs I showed you are going weird. Curling a little downward and the lower ones are going a little yellow. About 3 weeks into flowering between 2 and half weeks and 3 and half weeks into flower . Cheers guys