Can someone tell me what I'm the hell is going on!

i can't get these plants figured out. I've flushed and adjusted ph. I've added cal mag and nothing helps. I pulled some bad leaves off the small one right before I took the picture. I didn't think of posting until after I removed the leaves. Two are dwc and one is a hempy. Any help would be greatly appreciated

What's the pH??

What you feeding it with? It does resemble sulfur deficiency to me and maybe manganese as well. Basically, micro nutrients deficiency.

fertilizer brand?
how are you mixing it?
how many mls per gallon for each product?

I'll take a stab at it. I'd say you switched to flowering nutes to early or too high P boost early in flower. If not you have root problems going on. Bad roots

I'm using dyna grow bloom and grow on the little one. They're at about 500 ppm. The roots look great btw

Ph was at 6.5 but is at 6.2 now

Your pH was too high. Shoot for 5.8 and let it creep up from there. Nothing higher than 6.2

Damn dude.. i wouldnt wait as long as those look before posting for help. How long ago did she start yellowing and dying out like that?

SuperHI TnT said:

I'm using dyna grow bloom and grow on the little one. They're at about 500 ppm. The roots look great btw

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I don't have the dyna grow nute info handy

what are the npk % amounts for each bottle and how many mls per gallon are you mixing?
(a picture of the label with the % amounts would be ideal if you want the full picture)

id start with ph as low as 5.4 and let it drift up to 6.3


start a daily log of your reservoir solution

ph goes up PPM goes down raise ppm
ph goes down or PPM goes up lower ppm

ideally your ph will rise slowly and your ppm drop slowly or even sit flat in a perfect world


if the ppm is going up your over fertilizing, if its dropping your under fertilizing

if we get your fertilizer mix balanced youll be all set

500ppm sounds low

I just checked my ph pen accuracy yesterday in calibration liquids and found it was off by -.3 ...the plants still look good, but who knows how long that's been off for. point being, if you haven't calibrated your pen recently, might be worth checking on

Well I just bought the pen and calibrated it within the last 3 weeks. My ph has stayed at a pretty steady 6.4-6.5 until I brought it down to 6.2. The nutes I check far less regularly because I don't add much very often anyway. I just try to keep ph right and not let ppm get too low

Also ppm is at 670 right this second with a ph of 6.1

Xs121 said:

What you feeding it with? It does resemble sulfur deficiency to me and maybe manganese as well. Basically, micro nutrients deficiency.

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TOTALLY NOT a sulfur def.

Your suffering the very common problem of "too much P&K, too early"!

To be totally honest with you. Dyna Gro Veg and bloom is not set up for cannabis. It can be, made to work by decreasing the amounts used.....The NPK ratio's are wrong....

Dyna Gro Foliage Pro - does work best for that line and all alone too.

As for any nutrient line with veg and bloom nutrients. Don't start the Bloom till week 3 after the lighting change. Even then, mix the veg and bloom 1;1 for that week and go full on bloom at week 4.

ANY hydro style is run at 5.5 to 6.2 pH......I would focus on setting to 5.7 and let is swing up to being reset the next lights on...
Optimal range is 5.7 to 6.2 for hydro pH....

Here, reduce the bloom nutrient, increase the N a bit. They are quite burned but, can finish for something. Won't get near potentials but, it will produce - if you help it out.

Dr. Who said:

As for any nutrient line with veg and bloom nutrients. Don't start the Bloom till week 3 after the lighting change. Even then, mix the veg and bloom 1;1 for that week and go full on bloom at week 4.

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Is that true too for advanced nutrients basic micro grow bloom kit? they say to use the same ratios through the entire grow

These are autoflower and are on 24/0 light schedule btw

BadlyDrawnBoy said:

Is that true too for advanced nutrients basic micro grow bloom kit? they say to use the same ratios through the entire grow

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AN, sigh.

Well, haven't you run it before?
If it did that early yellowing from the bottom up thing.
You bet you should.....(do it the way I said).

Ok so I added about half a tsp. Of foliage pro to the Rez and I'll bring the ph down a bit now

Oh yeah...for the regular photo plant which is the smallest of the three is getting dyna grow grow. Should I stop that and use foliage pro instead?

im4satori said:

??
what?

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Different guy asked a question....