How to measure PPM
Shagrathanswered grow question 6y ago
Well best amd probably only way is to have an ec meter. Ppm's are converted numbers from ec thats measured and differing from manufacturer the ec is multiplied by 500,600 or 700 to get the PPM's
Similar Grow Questions
Solved
Fermentedhops
Substitute FloraBloom for KoolBloom?General Hydroponics Liquid KoolBloom NPK is 0-10-10 and FloraBloom is 0-5-4. Are there any other differences between them? Can I add twice the volume of FloraBloom when the schedule asks for KoolBloom?Week 2
Feeding. Chemical composition
6y ago
1
4
Solved
LesClaypool_777
NPK, too much Nytro And how do I moniter and fix this? Checking 02's PH levels? Thru runoff? Any insight?My NPK was still in need or at fault for my auto/fems. Not sure exactly? I see how drk green the 2nd plant was. Now lets act like Im not a newbie, and you a Grandmaster. Lol NPK is for NG, Potassium, and K...? And I check it thru soils PH, but again any insite?
Week 12
Feeding. Chemical composition
5y ago
3
4
Solved
DeepWaterGrower
FOAM in the DWC tankHi guys, yesterday I changed the solution in DWC and today I saw some foam in the tank.
I had some ph oscillation and used first ph down and after some silica to raise ph. I guess that could cause that foam, what do you think? Some tips?
Week 4
Feeding. Chemical composition
4y ago
6
2
Solved
DutchGrownGreens
Which NPK Ratio for autoflowers?what npk ratio is good? if i only use the ph perfect micro,grow and bloom it will give a ratio of 4-3-8.
if i add B52,Big Bud,Nirvana and overdrive i get a ratio of 7-10-20..
if i only add overdrive i get a ratio of 5-8-12 which seems better in my opinion then adding them all in.Other. General questions
Feeding. Schedule
Feeding. Chemical composition
4y ago
2
4
Solved
buddhi_coop
MolassesMolasses when watering or no ? I know people use it for compost tea & flushing but I’ve been using it in my water (1 tbsp) for past few watering. Should I do this or just use it for flushing?
Roots. Other
Feeding. Chemical composition
Feeding. Other
5y ago
10
5
Solved
Foxy420
Is this an iron deficiency?Is this iron deficiency?
Hi, everyone yesterday I put the lights closer with 5cm and watered with pH filtered water around 6.5, pH down with lemon juice, they are growing in Light Mix and I added once water with too much biogrow by mistake since than I am flushing, any ideas why?
Feeding. Chemical composition
5y ago
5
Solved
Scratchie
Calcium in tap waterIs 95mg/L calcium too much in tap water? (It's probably a little lower than that, since that's exit measurement from the waterworks.)
I haven't seen any signs of acute calcium toxicity, but I'm worried about buildup.Feeding. Chemical composition
Feeding. Deficiencies
Feeding. Other
5y ago
7
7
Solved
budshaman
Why is my PH possessed?Why is my PH refusing to go down from 9s to 6 unless I quadruple the normal amount of apple cider vinegar to 12ml? Normally 3ml does the job. This week, ml somehow doesn't move the needle. The EC is a little higher, could that be it? The RO is normal starting at 8, this week 10+Week 6
Feeding. Chemical composition
5y ago
2
6
Solved
Manollo420
Salt nutrientsHi folks! I can get my hands on Yara Calcinit 15.5-0-0 and a base salt with 6-18-36+3MgO. Does the MgO make the epsom salt redundant? And what are the NPK ratio's I'm aiming for during veg and flower? I have seen and read so many numbers, not sure what to believe anymore. Thanks!Week 8
Feeding. Chemical composition
6y ago
2
2
Solved
SOBIESLAW
Potassium (K) deficiency (Lucas formula GHE)I am trying the lucas formula, on the ghe nutrients. But it looks like one of my plants are now going into a potassium deficiency. Should i start adding the grow nutrient, and skip the lucas formula? Or add more bloom And stick with it? Grow=5% potassium and Bloom=3% potassium.Feeding. Chemical composition
5y ago
1
2
Solved
Solodolo47
How to measure PPMWhat’s the best way to measure the PPM in my water?Week 1
Feeding. Chemical composition
6y ago
2
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?3y ago
1
3
Solved
MiyamotoMusashi
hello growers, what do you think about alg-a-mic from bio biobizz? is it effective and how do you use it?
Plant. Other
Feeding. Chemical composition
Feeding. Other
5y ago
1
2
Solved
ForTheMeds
Do i need to Ph water if i mix ph perfect products with none ph perfectDo I have to Ph the water if i use advanced nutrients Connoisseur or sensei A+B with himboldt secret golden tree? Thinking with advanced nutrients ph perfect would i need to ph the water if i mix it with a non ph perfect nutrient maybe mix golden tree first then the ph perfect?Feeding. Chemical composition
5y ago
2
2
Solved
Misanthrope
PH problems (DWC)I'm using 5% acetic acid (vinegar) to lower the pH but with 6 hours it's always back up to the original pH. A similar bucket with no aeration remains stable. Is it because I'm using a weak acid? Is there any way to buffer the solution to keep it in the desirable range?
5y ago
1
4
Solved
TheBonnieRobin
Nute Burn?Upped my nutes this week per the BioBizz Lite Mix plan...but is it too much? The tips of a few of my leaves are ever so slightly yellow with crispy looking tips. Too much? If I need to dial back, which nutrient do I dial back on specifically? Or just dial back on them all?
Week 8
Feeding. Chemical composition
6y ago
2
2