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
Tap Water PPM
calamitanstarted grow question 2 years ago
What PPM does your tap water come out at? Mine comes out at 380 with a pH of 8.5. I’m pretty sure that means I don’t need to use any Cal Mag.
Solved
Feeding. Chemical composition
like
GrowingGrannieanswered grow question 2 years ago
How in heavens name do you know the ppm includes calcium or magnesium? It could have a ton of iron in it .. My tap water sits just above 200ppm ... and the pH is 7.5.... and what that means to ME is that I have to add a whole lot of pH-Down to get it where it should be... I don't do anything about the ppm... nothing to be done except to work with it... Mix your nutes, adjust the pH and see how your plant reacts.... you might need less nutes than is recommended or you might need more... your plant will tell you - but if you know your water has a lot of chlorine in it, you'll need to filter that out...
Good luck
Ezzjaybruhanswered grow question 2 years ago
A high EC/PPM from the tap obviously means there’s minerals already in it. Often it is majority calcium and magnesium depending on the source, but you never know unless you get it tested or have access to city water reports.
Frankly tho, 380 is quite high and I’d probably use RO if that were my situation..
I’m at about 110 PPM personally
like
Complain
GrowCNanswered grow question 2 years ago
I sent a sample of my water off to be tested. The test was inexpensive and I got a list of all the minerals in my water and it was a good opportunity to verify my home test results. In my case I am lucky as the water did have a good amount of calcium and magnesium.
1 like
Complain
ClydeGrowsanswered grow question 2 years ago
Mine is around 30-50ppm, very low.
I would be leaving it out in the air for at least 24hrs to dechlorinate, and you don't want to assume that any of those minerals are what your plant needs.
If you're growing in coco, you should always add some calmag. If you're in soil, you may still need some calmag but just give as needed. Your soil should also buffer any of those trace minerals in your tap water if you don't have a way to filter it (but a Brita filter will do!)
like
Complain
Robertsanswered grow question 2 years ago
You need to filter out chlorine. And mine is about the same I used calmag before and after I started filtering my water. Why would you think you don't need cal mag. It is loaded with minerals and chemicals to make it safe to drink. Not sure where you got this from, but I would not listen to it.
like
Complain
Similar Grow Questions
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
a month 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
a month ago
5
5
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.
a month ago
3
3
Solved
Snaqq
phosphorus and boron anomalyCould someone please explain the precise mechanism underlying the phosphorus anomaly? As anticipated, availability decreases with increasing pH, yet it exhibits a sudden surge at pH 8.5. What is the exact (bio)chemical rationale behind this phenomenon? Boron has a similar pattern
Feeding. Chemical composition
Feeding. Deficiences
Feeding. Other
a month ago
30
20
Solved
Esmoki_La_Cabrona
Nutrient Considerations - SwitchingDoes anyone use Holi Moli Juice? I currently use General Hydroponics Flora Series and considering switching. Any considerations I should make before switching? Or perhaps don't fix what isn't broken? lol, let me know 😊👏
Feeding. Chemical composition
Feeding. Other
3 months ago
2
2
Solved
BakedPotato42O
CalMag: Plagron vs. BiobizzIs there a difference between the CalMag Pro by Plagron and the CalMag by Biobizz?
If yes, which one and what would you recommend me?
Thanks in advance 😊👍Feeding. Chemical composition
5 months ago
1
1
Solved
Knorke14
Nutirents for hard waterQuestion regarding the correct fertilizer amount. Advanced Nutrients. If my water already has a high EC of 0.75 I use less base fertilizer (Bloom A+B). But do I also reduce the amount of additives like Voodoo Juice and Sensizym, etc? Is there anyone here with experience with AN?Feeding. Chemical composition
6 months ago
2
2
Solved
ObserverInterest
Very abnormal EC Runoff for CoCo Coir - please help on what I should do. I am scared to increase nutes in case I get nute burnMy EC going in is just under 2,000 (The maximum it should be much later in flower according to online) but comes out much lower and is getting lower each (735,467,368 respectively). Online says that Coco runoff will always be higher t- what should I do? I am scared to increaseWeek 6
Feeding. Chemical composition
6 months ago
3
Solved
GoldenWeedGrower
Moving from AN to another brand,This question is addressed to super-expert grower: I would change my nutes moving from AN to another brand, less expensive. The question is: in your opinion wich brand has the best value for money ? ThanksFeeding. Schedule
Feeding. Chemical composition
8 months ago
3
4
Solved
Jaked
Hello community! I broke 2 branches this week. The first one happened by accident when I was draining the runoff, and the other when I was bending it.And today I came across a video where the author explains that silica can cause brittleness of branches. Does anyone have experience with silica and have you experienced anything like this? I add potassium silicate with each watering, at a concentration of 15ppm
Feeding. Chemical composition
9 months ago
2
4
Solved
SoloDog86
Garden hose filterI was looking at buying a garden hose filter to remove the chloramine and chlorine. I'm worried it will remove the cal, mag, exc... Anyone have any input into this.Feeding. Chemical composition
a year ago
2
7
Solved
Dormando
BioThrive Fertilizer Water pH & PPMI tested my BioThrive Bloom+CaMg fert water for the first time ever today; I've been feeding 4.5 pH & 340 ppm fert water solution; Soil pH is 6.7-ish per the Rapitest meter. Should I add pH up solution to make the fert water 6.2pH? What if the soil pH increases over 6.7?
Other. General questions
Feeding. Chemical composition
Feeding. Other
10 months ago
2
2
Solved
Scilef
High ppm in drainageI flushed coco two times with 8-10 litres with CalMag (200 ppm) and it does not help. You can see in my comments to the last weeks of the diary that it doesn't matter how much ppm I water the plant, it is always 2-3 times more ppm in drainage.What should I do?a year ago
3
4
Solved
1kodah
Exit EC in peat and perliteVariety of opinions in the landscape with regard to watering to run-off when growing in peat or coco and perlite. Of course that makes testing exit EC a challenge. Asking for opinions - are the EC meters that have a probe to read substrate EC/salts any good? Is that the solution?
Week 2
Feeding. Chemical composition
a year ago
3
5
Solved
DabblingDoggo
Anyone tried or has experience using Food Grade Phosphoric Acid as a PH Down?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.Other. General questions
Feeding. Chemical composition
Feeding. Other
a year ago
4
4
Solved
VitaMan
Ozone generator next to airpump to periodicaly oxygenate nutrient tank?😏 Drip sysem hydroton. Ozone generator next to airpump to periodicaly oxygenate nutrient tank? I imagine it could have a similar effect as peroxide or ucroots. Am I right? Will this affect the nutrients or pH negatively?a year ago
1
3
Solved
toast_adagio
CANNA Boost Accelerator right way explanationGuys, could you please explain to me the right way to use CANNA Boost Accelerator. I don't know:
- when to add (I read - two to three weeks after changing daylight hours)
- where to add (in the main mixture or separately)Feeding. Chemical composition
Feeding. Other
a year ago
3
3
Solved
CanadianChronic
Plants dropping off at end of bloom cyclePlease tell me some brief information about the amount of nutrients you are using and why.
I am trying to find the perfect amount and get my formula just right.
My leaves seem to be yellowing and going all crispy and brown even falling off towards the end of my bloom cycleWeek 7
Feeding. Chemical composition
a year ago
1
1
Solved
Mining_green
I moved the Strawberry cheesecake outside i need to ask the most concentrated group og high level growers i know of. Can i switch my feed to salt based 20-20-20 or a bloom type food or should i keep going with the gaia green for this beauty.Week 20
Feeding. Chemical composition
a year ago
3
4
Solved
Lordcrow
NutrientsMixing several different brand nutrients is not recommended or we don't care ?Feeding. Chemical composition
2 years ago
5
5