I use a apera ph60 very dependable and accurate. There are several good brands on the market. The cheaper ones you’re going to always be chasing the calibration bad to drift.
Okay, what about a ppm meter, thoughts on that?
Looks seriously hungry to me!
Looks like a good choice of a combination meter.
Yes that’s why it’s confusing. From above comments narrowed it to ph lockout.
So I’m gonna call in a couple of folks: @MattyBear @dbrn32 @TDubWilly.
Going out on a limb here: Plants look fine.
You have some possible (and I mean possible) latent heat stress, or not, depending on when photos were taken. You could have low N but in media an excess can look like a deficiency. If anything it’s so minor I wouldn’t stress it.
What is your nutrient load? This is important because if you were at say 500 ppm then you need to bump up but if you are at 1,500+ then you need to back off. Not enough information to make a really good diagnosis.
I’m Not much of a nutrient diagnoser especially through pictures.
I can only give guesses and mine would be overwatered, ph or a slight case of nute burn, but honestly Idk.
I’m a much better trouble shooter than a picture diagnoser. Might need to transplant before to long btw!!
So I’ve been feeding them 5ml/gal of GH flora grow, micro, bloom with 5ml/gal of calmag watering plain water ever two feedings. Ppm is unknown, just ordered a ph/ppm meter today.
I’ve ruled out over watering. I water them 1.8L when the pots are feather light. But that was my first thought when the plant was drooping for the first few hours after lights on and a few hrs before lights out.
Ok well you need to consider a transplant.
So many negative things can happen when roots are bound.
I would transplant…give the plant a week or two after and see if it improves or worsens then start making adjustments depending on how they look
That’s just me
Completely forgot: you do need a bigger pot.
That answers it: plants anticipate lights on and off and change their posture to reflect that. That’s what I was thinking when I saw your plant. Transplant up and it will make a difference in your PH too. I would suggest NOT blending your media: there is a reason you can’t buy coco and peat together. I would strongly suggest you stick with one or the other until you gain some experience. The perlite: hopefully wasn’t Miracle Gro as it contains fertilizer.
Ok I’ll let them dry out and transplant them from 2gal to 5’s this week. Okay no coco, 75% promix, 25% perlite sound ok? Or should I go with a 70/30 mix of promix and happy frog soil conditioner?
Also, should I flush the other 5 girls or just let it ride till transplant?
Just check the bag: a lot of perlite has added fertilizer. I didn’t know until someone pointed it out only a couple of weeks ago.
I use both coco and Promix HP and like the Promix just a bit more than coco, but coco is a sustainable product unlike Promix which is peat.