what the heck happened

Ok I done some more tests to the other plants because i gave the same feed to all of them.

the twinsie of the sick one is looking better than the other although the ec is at 2.5 (1250ppm)
IMG_20201211_223145.jpgIMG_20201211_222848.jpg

I also did the test on the small one which is at a lt solo cup and it looks worst but the ec is at 0.81 (~400ppm)
IMG_20201211_221248.jpgIMG_20201211_221238.jpg
Maybe I should make new thread for the lil one?
 
Many thank yous.

So next time I just make the mix with the nutes to target ec/ph, but and this can also be a question to @Proph , having that nutrient line in mind and the schedulle that accompanies it, i should do the mix and after measuring i should just put more water to dilute it? or more to make it stronger?

Or I should ditch the biobizz and get another line that i can control better?
I don't think you need to ditch your nutrient line. Regardless of whatever nutrient line you choose, you will have to learn how to work with it because it's most likey not designed with autos in mind. Just start with 1/2 or 3/4 of the recommendations and then test the ec. If it's it's too high, yes you can use plain water (zero ec) to dilute it back into range. Just remember that checking the ph of the mix is always the last thing you want to do. It's really hard to knock the soil ph out of range, so your soil ph should be fine .. It's pre buffered to stay around 7. That's the case with almost all bagged soil. Also keep in mind that though the slurry test is always an option, it's usually the last option. That's because your not actually testing soil from the root zone.. Your testing a small section of top soil that will never see a root.. The most accurate way to test the soil ph if you ever need/want to, is a soil ph probe that tests soil in the root zone where it matters and where the ph changes happen. I use a kelway meter myself.
 
Many thank yous.

So next time I just make the mix with the nutes to target ec/ph, but and this can also be a question to @Proph , having that nutrient line in mind and the schedulle that accompanies it, i should do the mix and after measuring i should just put more water to dilute it? or more to make it stronger?

Or I should ditch the biobizz and get another line that i can control better?
As proph says, your current line should be fine, you just need to get it adjusted for your autoflower plants. For mixing, you can just mix at full strength according to the nute instructions, and once completely dissolved, add water until you get to your target EC. If your tap water is more than ~300EC absolutely max, you should use deionized or distilled to mix your nutes. Some tap water, including mine is bad news for cannabis. I am now using melted snow as my irrigation water source.

My current grow might serve as an example of the EC's that can work. I am in Sunshine #4 plus 30% or so of perlite. This is a mix with very little added nutrient, considered more of a soilless medium than soil. Even in this very light medium, I am currently at only ~650EC, and that includes ~45EC water, ~100EC of cal mag, ~100EC of kelp extract, and some fulvic acid. That's only ~400EC of Megacrop, which is a third of what Megacrop recommends for flowering, which my plants will be starting with before long - the larger plants are at Day 38 today. As is posted again and again here, when it comes to nutes, less is often more. Start low, and let the plants tell you when they get hungry.

As the photo below shows, my plants are not suffering from lack of nutes at this low EC. For scale, the duct is 4 inches, and the fabric pots are rolled down 5 gallon ones.

group shot.jpg


The small plant on the right might like a bit more feed, but I am not going to bother with that because all I want from it is some pollen, and that should be sorted in another couple weeks if not sooner, at which point she/he is destined for the bin.
Good luck getting your grow sorted, keep us posted on how you make out. :pighug:
 
Sorry I'm very unknowing of stuff, what is the salt feed? epson salts?
Do you think I need Calcium? I try to get it as a single component at my local shop but they didnt had so i bought Canna Mono Magnisium and order the calcium one.

What is a tack ? XD
@growingmicro No I think you need less calcium. If it is not an organic fertilizer then it is made from "Salts". In strict chemical terms, fertilizers are salts.
 
I want to thank you all for your time and patience.
You are all very kind and I want to give you a hug as a token of my appreciation.

View attachment 1264242
Have you got a journal or anything for your grow mate? Love to see updates on how they turn out for you. Ps, Trailer Park Boys is the best thing since sliced bread! :headbang:
 
Quick update, it seems that there is no new spots on it although one of the leaf's fell while I was taking one out.

The one all curled is the one that fell, took the other one cause I thought it was looking bad.

It's two different problems right?

Been super cold and humid so the soils is still pretty wet to give a new feeding.

IMG_20201213_124439.jpg
 
Quick update, it seems that there is no new spots on it although one of the leaf's fell while I was taking one out.

The one all curled is the one that fell, took the other one cause I thought it was looking bad.

It's two different problems right?

Been super cold and humid so the soils is still pretty wet to give a new feeding.

View attachment 1264703
What ph do you normally adjust to before watering?
 
I’ve checked your thread out, you’ve got a nice setup. Only thing I didn’t see, I might have missed it though, are you monitoring root temps?
 
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