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Underfed or pH issue 🤔
- Thread starter No3odiesShad0w
- Start date
No3odiesShad0w
New member
maybe it wasn't a deficiency but some kind of odd fade? idk but she smells like the best grape candy ever
No3odiesShad0w
New member
Probably was the pH. There was no need for me to lower the pH of the water (man but my monkey brain keeps wanting me to. I need to break that habit and have faith in my soil). As soon as I stopped lowering it, the spotting stopped spreading. Also noticed the buds stacked an extra 1/4 inch. Another 2 weeks and we should be nearing the end!!
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Going2fast
New member
I think that's just some cool fade. Beautiful.
No3odiesShad0w
New member
Bluey I haven't been measuring the pH. Sometimes i check the water but i stopped checking some time ago. 1 gallon gets 1 spray of vinegar and it goes down to 6.8 for coco i do 2 sprays to get the water to 6.5. That's been my method for the last 2 grows and it's working pretty well. besides the funky leaves, they're growing really well. The buds are fat, solid (unlike the lilac diesel) and sooooo fragrant.
Going2fast That's what i'm doing. I'm just taking picture of this unique fade. She's got 2 more weeks and she should start to fade naturally. Can't believe it's been 3 months already .......and STILL waiting for the freakshow to side branch.
Going2fast That's what i'm doing. I'm just taking picture of this unique fade. She's got 2 more weeks and she should start to fade naturally. Can't believe it's been 3 months already .......and STILL waiting for the freakshow to side branch.
Bluey
Well-known member
No3 you say you are lowering the pH to 6.5 for a coco grow. Is it just coco or do you mix it with organic stuff?
Reason I ask is coco on its own has a pH of about 6.0 and that's the middle point for setting pH in veg and typically the lowest in flower...ive been using a middle point of about 6.15 in flower.
I haven't used vinegar before to adjust pH but reading up on it now it says it is stable short term for around 3 days, but I've found that stability changes with nute types. I'm using lemon juice and getting 7+ days stability with my mix. Apparantly phosphoric acid and sulphuric acid are the go, phosphoric being the safest.
Reason I ask is coco on its own has a pH of about 6.0 and that's the middle point for setting pH in veg and typically the lowest in flower...ive been using a middle point of about 6.15 in flower.
I haven't used vinegar before to adjust pH but reading up on it now it says it is stable short term for around 3 days, but I've found that stability changes with nute types. I'm using lemon juice and getting 7+ days stability with my mix. Apparantly phosphoric acid and sulphuric acid are the go, phosphoric being the safest.
No3odiesShad0w
New member
Bluey lemon juice loses it's ph buffering in a few hours. It sucks. Vinegar is fine. I don't want the water in the bases more than 3 days anyways and from my own experiments just leaving water in containers; one ph"d with lemon juice and the other with vinegar. While the lemon juice one lasts only a few hours before the ph creeps, the vinegar actually got more acidic as the days went on. Not sure where you read that lemon juice can buffer for days, I haven't seen it with my experience. I'd be interested in that source if you have it. The reason why i lowered the ph for coco (my thinking process) I add lots of calcium, with peat it's fine because of the acidity which also plays a part in breaking down rock aka calcium, I just worry if i don't add 6.5 water, the calcium won't have anything to buffer nor dissolve it to make it plant accessible. Probably not correct, but that's why i have my ExperiPot Do smaller scale tests before i commit to a full scale grow. I just worry with coco being fairly neutral and all the limestone and dolomite lime might drive up the ph too high.
also, with the vinegar. I wouldn't use it with any mineral base nutrients. I would be worried about possible chemical reactions or having the minerals precipitate out of the liquid. I only use it with living soil applications because at worst it will turn a hydrochloride salt into an acetate. and minerals like calcium acetate is 10x more soluble than calcium hydrochloride. Since i stated using vinegar, I haven't had any calcium problems and you remember all my past grows from 2 years ago and all the crazy calcium problems i had. Now, Zero calcium issues. Mostly zero issues across the board with some anomalies here and there.
also, with the vinegar. I wouldn't use it with any mineral base nutrients. I would be worried about possible chemical reactions or having the minerals precipitate out of the liquid. I only use it with living soil applications because at worst it will turn a hydrochloride salt into an acetate. and minerals like calcium acetate is 10x more soluble than calcium hydrochloride. Since i stated using vinegar, I haven't had any calcium problems and you remember all my past grows from 2 years ago and all the crazy calcium problems i had. Now, Zero calcium issues. Mostly zero issues across the board with some anomalies here and there.
No3odiesShad0w
New member
I'm just curious why it's happening and what's causing it. It's not affecting the buds They keep stacking. It does look like a cool ass dalmatian plant though.
Bluey
Well-known member
First couple of grows I did I had to fertigate from a 200ltr tank and fully automate everything, so I had to find a pH up/down that would hold steady. I have a lemon tree so I tested lemon juice and in my rainwater with my nutes it holds for 7 days no problem. I did try a calmag suppliment that stuffed everything up though for about 3 weeks before I nailed the issue. Found another that worked fine after that.