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
Help understanding PH
Weedizstarted grow question 2 years ago
I have big problems understanding my PH levels. I put in @5.5-5.8 PH (lowered with acetic acid) and the run-off is always too high, about 7-7.5 PH. I started testing my water / nutrients by intervals and nothing makes sense to me. Every test shows an increase in PH, up to 2.7 up?
like
Organomananswered grow question 2 years ago
If you are starting with water at 8 or 9 pH, you have a big problem.
Adjusting your pH with acetic acid (vinegar) does not work to stabilize pH levels long term and I believe a "pH down" additive based on phosphoric acid will keep pH stable for much longer.
Also make sure to adjust your pH last, after all the fertilizers are added to the water.
At this stage you will have to flush heavily with pH adjusted water (containing phosphoric acid) until your run off reads 5.8.
Mr_Incognitoanswered grow question 2 years ago
In my current Royal AK grow, I water with pH 5.5 and runoff is 7.5. The soil is bad, with too much pH-stabilising additives, so I have to stick to 5.5. The plant is a beast now, while few weeks ago I thought it’s gonna die.
1 like
Complain
capt_crunchanswered grow question 2 years ago
That means your plant has all the nutrients it needs. The reason it's high on the run off, the plant is only consuming the water not the nutrients.
1 like
Complain
Robertsanswered grow question 2 years ago
Your in coco. You need to strong flush the substrate with low pH till run off is right. The reapply nutrients. If pH is climbing you likely need to add more feed. Your pH will directly be effected by amount if feed. I grow in coco regularly.
1 like
Complain
Similar Grow Questions
Solved
CANNA_401
Luftfeuchtigkeit zu hoch für die Blüte? - Methoden zur LuftfeuchtigkeitsregulierungIch merke das ich die Luftfeuchtigkeit nicht dauerhaft unter 50% bekommen werde, denkt ihr ich sollte in einen Luftentfeuchter investieren? (Sensor auf Pflanzenhöhe)
Ich will nicht riskieren das sich Schimmel and den Blüten bildet.
Danke schon mal für die Antworten 💪👽8 months ago
7
1
Solved
HanYoloq
Herma or female?In some ways it looks like Herma and in other ways it looks like a female. Do you think it's herma?
Other. Other
9 months ago
5
5
Solved
SensiMiller
Cola growing again after to much light while flowering?In the last 2 weeks of flowering this plant seems to have started to grow at the top of the cola again. Lefft the lights on 5 hours too long 1 night. Also needed to do some maintenance etc in the same week. Maybe to much light (DLI) and starterd growing again for short while?
Other. Other
9 months ago
3
3
Solved
Azielly
Its Flush Time or is IT ?Hi,
It should be flush week this week. but i don't even see amber trichomes on any flowers, so my question is, can i push her an extra week even if it is mention on Fast Buds web site 9 weeks ?
Thank you for sharing your thoughts .😦
Week 9
Other. Other
9 months ago
6
1
Solved
JSanchezz
Some general questions about Co2Is it Benificial if i Rise the the CO2 even if the Rest of the Conditions are the same Temp RH in W4 Flowering VPD ~1.3 ?
Co2 at the start of the day @1300ppm slowly decreasing to 500ppm at the end of the day
I think the plant uses as much Co2 as it needs if it has more availa
Setup. Other
10 months ago
2
4
Solved
InTheSmallSpace
Is it in the Harvest Window ?Based on the photos do you think they are in the cutting window?
Other. Other
10 months ago
1
Solved
JSanchezz
Serious question about humidity and killing a plant2nd grow
3 plants SCROG in flower week 2
Humidity is at 74% at 25C
I had 2 plants bevo significantly less RH on the first grow
Now the serious question should I kill one plant to make the others feel better and avoid mold later in flowering.
Dehumidifier is not an option, nospac
Setup. Other
10 months ago
5
4
Solved
EaRtH
Should I harvest in 2-3 weeks ?Hey, do you think my plants might be ready in two weeks ? They're autos in 7th week of their life. I know that 9 weeks is ok for most, but these should take approx. 11 weeks. Do you think one more week of feeding, then flush would be appropriate ? Trichomes are mostly milky white
Buds. Other
Leaves. Color - Yellow
Other. Other
a year ago
1
3