What to do?

[Troon]

I did a Foliar spray yesterday with CaMg+ and last time I watered I have half strength CaMg+ from General Organics. I am also using r/o water.

What's the best approach? My plants are doing very well as far as growing goes. Never have I had plants grow this well! This is mainly showing in one plant. Strains are fast and vast/wipeout express two of each.

 

[Troon]

More pictures.

 

[Falafel]

Hey Troon, what kind of medium are you growing with? It looks like a potassium deficiency.

 

[Troon]

Hey Troon, what kind of medium are you growing with? It looks like a potassium deficiency.

Soil with 10%-20% perlite mixed it in myself. Using Natures care organic soil( a miracle gro brand). I also poured sand on top of pots to keep fungus gnats away. Thanks for replying by the way, posted on another website and no one responded. ;(

 

[Troon]

Just did a quick search and you seem to be 100% correct! I normally have this problem and always thought it was calmag! I will be patiently waiting for another response.

May start using this website more as all I grow is autoflowers! This is my third grow so I'm still new to this. This website seems to be much more newbie friendly.

 

[Troon]

Okay so from doing a little research and reading the back of my nutrient bottles I found out potash = potassium!

Here is what I've got:
Bio thrive (3.0%)
Bio root (1.0%)
Bio marine (1.0%)
Diamond black (1.0%) - only potash listed on this one, nothing else.

I am assuming diamond black would be my best bet? I just watered two days ago, pots are still heavy. Funny thing is I skipped this one last feeding because it said it was optional and I didn't want to over do it! Can I Foliar spray, or rewater? If so at what strength. GO suggest 5ml-10ml.

Edit: I have the whole lineup BUT I think those are the only ones that have 1.0% or more, Diamond Black being the only where it is listed by itself.

 

[Falafel]

It is indeed newb friendly! I'm a newb as well. What is your current dosage? Based on your pictures, I would only be feeding Bio marine and maybe Bio root.

 

[Falafel]

The plants look great by the way! What day are they?

 

[Troon]

The plants look great by the way! What day are they?

I just do half the recommended for everything, just skipped diamond black last time.

I also checked my ph of the soil and it seems to be 7-7.5 so wouldn't diamond black do me some good? I do use a cheap ass probe three way meter though, so I don't really trust it. All my soil readings seem to be the same. I do have slight nutrient burn on the tips, or what I believe to be anyways.

They sprouted 20 days ago today! I switched from four Mars hydro 150 watt (actual) old model to a 1,000 watt Mh/HPS. The plants are growing so much faster and thicker too I believe.

 

[Falafel]

Oh yes! Sorry, I just looked it up. Definitely use the Diamond black, that stuff looks good! I have some stuff that's similar by Bioag.