By continuing to use the website or clicking Accept you consent to our cookies and personal data policy. For details please see Privacy Policy
Accept
Anyone tried or has experience using Food Grade Phosphoric Acid as a PH Down?
DabblingDoggostarted grow question a year ago
I bought a bottle of certified Food Grade Phosphoric Acid (85%)? The PH Down from GH, and they use food grade phosphoric acid in their product (generalhydroponics.com/products/ph-down-liquid/). Has anyone tried this? Any tips? I have distilled water to reduce concentration.
Solved
Other. General questions
Feeding. Chemical composition
Feeding. Other
like
m0useanswered grow question a year ago
Its 100% good. You did not need food grade but that's a nice touch.
I also use a 85% ph down that is comprised of only phosphoric acid. I have the main bottle in the closet stored upright and I fill up a little tincture dropper bttl for my main tent and add in drops at a time. about 5 drops per gallon of water to get it low 6.0 and about 2-3 drops to get it aorund 6.5 for my tap water every place is going to be different based on mineral content of the water.
You don't need to dilute it further with distilled as it just means you need to use more, but that could offer a bit better control if your working with small volumes of water, so the option is there but I think its not needed.
Good Luck!
Sciolistic_Steveanswered grow question a year ago
there are plenty of options that don't add overlapping plant needs. white distilled vinegar is usualyl found in any household.. that's cheap and easy to use.
ph-drift is not caused by the acid you choose. the acid you choose is not more stable than other acids.
ph-drift occurs when a solution is not properly buffered. it is a sign of a shitty manufactuer of soilles/hydro nutes (not soil nutes, those are rarely ph-buffered)
1 like
Complain
Sciolistic_Steveanswered grow question a year ago
yes, as long as it doesn't create an imbalance related to adding more P ...
1 like
Complain
Robertsanswered grow question a year ago
It should work fine. I use a phosphorus ph down. I generally add it with a eye dropper.
1 like
Complain
Similar Grow Questions
Solved
Spike_KCanG
Why? - Same genetics: one smells, one doesn't.Number 4 (Amnesia Haze photoperiod) started smelling of cannabis since her 2nd week of veg. Her 3 sisters before her didn't smell of cannabis, not even in bloom..
Why? What alters the smell of plants from the same genetics, when all other conditions are the same?Other. General questions
2 months ago
4
4
Solved
B_Punkt_Baumeister
Purple Trichome effectsHello. My Plant developed a lot of deep purple Trichome Stalks.
What effect do purple Trichomes have compared to the cloudy or amber ones?Are those a good thing and if yes, how good?
This is my first run. Banana OG PevSeeds, Flower day: 56, outdoor. Thank you very much in advance
Other. General questions
2 months ago
3
Solved
DoneWithIt
I messed up.Hello my Friends, i have 2 Problems. 1. i think my Plants have little mold spots here and there (pictures) and 2. they develop little love bags (seen on 3 of 7 ladies). I wanted too harvest in 3-4 weeks. A friend said maybe i should kill them right now because it just gets worse.
Other. Mold
Other. General questions
Plant. Too short
2 months ago
3
Solved
Floryx
Is my grow over?Today I noticed these little balls on one of my plants. As is was inspecting my other 2 plants i noticed they also have some of them. A little google search later i found out my plant is probably a hermaphrodite. Im on flower day 44. Is my grow over?
Week 10
Other. General questions
2 months ago
3
4
Solved
Snaqq
PK Boost TimingBy what visual indicators do you determine the ideal timing for giving a week of PK13/14? The stretch seems mostly complete, the buds are thickening daily, and the first trichomes are appearing on the sugar leaves. Should I start now or wait a few more days?
Diary for more info
2 months ago
11
9
Solved
Snaqq
pH irrigation / runoffWhy is the pH of the runoff so much higher than the pH of the irrigation water? Is the runoff or the irrigation water more important to consider?
Canna Terra Professional Plus and BioBizz pH-
The pH lowering effect seems to vanish in the fertilizer solution after one to two days
Week 5
Feeding. Chemical composition
2 months ago
5
5
Solved
Mooncat
Mister vs Dripper (Irrigation Solutions)Basically playing around with automatic irrigation ideas (Soil), the plan is to make an array of misters instead of drippers since they wont wet the soil completely unless i use like 4-5 of them for one pot.
Any additional Suggestions or Kontra against that Idea?Other. General questions
Feeding. Automatic systems
2 months ago
7
5
Solved
4ako4ako
harvest time?👋👋👋
how many weeks till harvest? 1-2?
Other. General questions
2 months ago
2
Solved
GodOfAnger
opinion on bud maturity ?About 6 weeks since flip from flower and wanted to know if the orange/browning of the white pistils means that the bud has already reached its max size and will only ripen ,but bud sizes look pretty small to me does this mean yield will be low ? or am i just overthinking.
Buds. Not fattening
Other. General questions
2 months ago
3
Solved
SHRiMP_EyE
my first plant, any suggestions on improvments?Royal Jack Automatic (Day 24)
This is my first plant, any suggestions on improvments or leafs that i should get rid of? :)
https://growdiaries.com/diaries/234435-royal-jack-automatic-grow-journal-by-shrimp-eye/week/1321961?lnk=0
Other. General questions
Plant. Other
2 months ago
3
3
Solved
Snaqq
Fert Switch Veg/Flower TimingWhen and how do you switch from Canna Vega to Canna Flores? Feel free to share any tips. What are your "signals"?
Do you suggest a hard switch like in the Canna schedule, or do you prefer transitioning by mixing the fertilizers?
If you need more info, please check the diary.
2 months ago
3
3
Solved
KingMickey
Are these ladies ready or should I give them more time?Flowering time is said to be 60-70 days, today is day 62. I've seen a lot on the trichomes and when to harvest but I don't quite have the eye for it yet as it's my first time. Would you guys say these are ready or should I go a few more days. Thanks in advance for any help!
Week 13
Other. General questions
2 months ago
8
6
Solved
Floryx
Ready to harvest?I took these pictures of the trichomes today. I heard trichomes should be 2/3 milky and 1/3 orange. On my pictures i dont see much milky trichomes but a lot of orange ones. What does that mean? Are they ready to harvest or should i wait? Side note: I fertilized the last 2 days
Week 12
Other. General questions
2 months ago
3
2
Solved
sellem
Same old question about harvest..2nd grow. When to? Im getting different responses all over the place. Some people say stigmas are still white, other say ignore stigmas check trichomes, others say wait for swelling. Plant is BPP auto fastbuds, day 69, 9L plastic pots soil under 150w @1000ppfd 18/6
Buds. Other
Other. General questions
Setup. Strain - Autoflowering
2 months ago
3
1
Solved
sellem
Nanner? seed? need help!Noticed this on a plant of mine in my second grow. is this a nanner? a seed? i did a full 360°-Check, dont find anything that looks familiar. its on a 70 days old BPP from fastbuds. "close" to harvest. Also: What to do? remove? ignore? harvest asap? thanks a lot in advance!!
Other. General questions
Plant. Other
2 months ago
1
1
Solved
m0use
Best FastBuds For Bubble Hash OUTDOORSAny input with experience on growing FastBud autos outdoors for the purpose of bubble hash.
Will be growing in soil, just looking for a good overall hash plant. I've noticed some of their strains are bunk for outdoors.
Leaning towards Gorilla strawberry and Bruce Banner, ideas?
2 months ago
6
6
Solved
Big_Buds_Good_89
Possible runt?How old do ya'll think this plant is? Reason I ask is because it's an autoflower and it already has pistils growing. I think it may be yet another runt. I'm starting to get really pissed off.. I haven't done anything to stress it.
Other. General questions
2 months ago
1
5