What EC levels are safe during flowering?

jimmyjam22

jimmyjam22

Active Member
Hey, I have two plants in buckets at the moment in around 3-4 weeks into flowering and I'm running my EC levels at 1.8. Is this too high? Ive noticed different people say different things and now I'm confused lol has anyone got a chart or something which says what EC/PPM/CF are best throughout the stages?
 
S

stinkyg

Well-Known Member
if you go high in ec just watch for burn cause plants can only use and store so much ! 1.8 should be sweet though just watch for them drinking water cause the ec goes up ! just watch for the burn !!!! i know people that keep to 1.2 and the yield n quality is to notch !
i raise mine then lower it. Horses fo courses !
 
sgadan

sgadan

Active Member
im using nft and at day 20 12/12 my e.c is 1.4 might try raising it a little in a week or so.

have been wondering about my bluelab nute pen it has e.c x 500, and e.c x 700 for ppm reading does anyone know why and or which 1 to go by?
 
jimmyjam22

jimmyjam22

Active Member
I have the same bluelab nute pen too and was wondering the same thing... Its a bit confusing! I think I might drop my E.C. to 1.2-1.4ish... I only just got the nute pen the other day. Before that I had just been mixing 1/4 strength nutes...
 
sgadan

sgadan

Active Member
green 011.jpggreen 001.jpgcouple of pics jimmy u got any of your grow? im on day 23 of 12/12 and day 47 from seed just got 1 super skunk in there.
hope someone answers the ppm Q but e.c reading seems to be working jus fine (atm).
 
neobes

neobes

Well-Known Member
If you don't know the best EC for your plant, you just have to experiment. All plants are different. What I do is start at 1.0 then slowly increase the EC each day by .05 or .1 until I see a little bit of nute burn(crispy leaf edges, etc.) when you reach that saturation point, back off at least .2 or so. Some people use low concentrations of nutes and have great results. Less tends to be better than more in the nutrient game.
 
Rube Goldberg

Rube Goldberg

Member
go by the EC!! ppm is just a conversion. the difference between .5 and .7 conversions is simply American vs European~! Sorta like US gallons vs Imp gallons.
 
D

doser

Well-Known Member
Rube Goldberg said:
go by the EC!! ppm is just a conversion. the difference between .5 and .7 conversions is simply American vs European~! Sorta like US gallons vs Imp gallons.
Click to expand...
I've been asking that question wherever Igo and got bullshit answers. Yours mightbe bullshit too but I think you're right!!

Anyhow, I have LA Confidential in coco and I've been running at 1.0 to 1.2. Just got back from the hydro store (buying some more coco) and they said to up it to like 1.8. Not sure I can do that without nute burn but I am going to try to up it a little. Been getting great growth rate at 1.2 though.

BTW, my wife just told me about right clicking for spelling and it was an NO SHIT!! moment. What a dumbass!!
 
Rube Goldberg

Rube Goldberg

Member
You just need to experiment with your plants my friend. I typically feed 1.2 at the very top end. I grow FRDWC though which gives high DO levels. This allows plants to assimilate nutes better (i.e less nutes needed) than other growing methods.

Some indicas can easily take 2.2 or more. But just because you can throw that many nutes, doesn't mean she NEEDS that many nutes. Like CaptinJack said, just increase slowly and see what happens
 
Vumar

Vumar

Well-Known Member
PPM recommendations are inaccurate and confusing! To help you through this confusion, please see the following chart.
1 MS/CM = 10 CF e.g. 0.7 EC = 7 CF.
Conversion scale from PPM to CF and EC.
EC Hanna Eutech Truncheon CF
MS/CM 0.5 0.64 0.70 0
0.1 50 PPM 64 PPM 70 PPM 1
0.2 100 PPM 128 PPM 140 PPM 2
0.3 150 PPM 192 PPM 210 PPM 3
0.4 200 PPM 256 PPM 280 PPM 4
0.5 250 PPM 320 PPM 350 PPM 5
0.6 300 PPM 384 PPM 420 PPM 6
0.7 350 PPM 448 PPM 490 PPM 7
0.8 400 PPM 512 PPM 560 PPM 8
0.9 450 PPM 576 PPM 630 PPM 9
1.0 500 PPM 640 PPM 700 PPM 10
1.1 550 PPM 704 PPM 770 PPM 11
1.2 600 PPM 768 PPM 840 PPM 12
1.3 650 PPM 832 PPM 910 PPM 13
1.4 700 PPM 896 PPM 980 PPM 14
1.5 750 PPM 960 PPM 1050 PPM 15
1.6 800 PPM 1024 PPM 1120 PPM 16
1.7 850 PPM 1088 PPM 1190 PPM 17
1.8 900 PPM 1152 PPM 1260 PPM 18
1.9 950 PPM 1260 PPM 1330 PPM 19
2.0 1000 PPM 1280 PPM 1400 PPM 20
2.1 1050 PPM 1344 PPM 1470 PPM 21
2.2 1100 PPM 1408 PPM 1540 PPM 22
2.3 1150 PPM 1472 PPM 1610 PPM 23
2.4 1200 PPM 1536 PPM 1680 PPM 24
2.5 1250 PPM 1600 PPM 1750 PPM 25
2.6 1300 PPM 1664 PPM 1820 PPM 26
2.7 1350 PPM 1728 PPM 1890 PPM 27
2.8 1400 PPM 1792 PPM 1960 PPM 28
2.9 1450 PPM 1856 PPM 2030 PPM 29
3.0 1500 PPM 1920 PPM 2100 PPM 30
3.1 1550 PPM 1984 PPM 2170 PPM .1
3.2 1600 PPM 2048 PPM 2240 PPM 32

Found on a 2007 RIU thread, just passing/bumping good information~
 
jimmyjam22

jimmyjam22

Active Member
Hey guys, thanks for all the feedback. I am currently at an EC of 1.6 with the plant on the left and 1.8 with the big girl in the middle lol. They both seem to be loving it! Thought i'd chuck in a pic of lights out time too because it looks cool. How often do you guys change your water? Ive been doing it once a week.. Is this too often? Am I wasting nutes and water? lol Tell us what ya's think of my pics bongsmilie
 

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jimmyjam22

jimmyjam22

Active Member
Forgot to say I can't remember what date i started flowering them :wall: think its about 4-5 weeks maybe lol oh and the two small plants are in coco. Don't think i'll be going back to coco after DWC... maybe in summer lol
 
D

doser

Well-Known Member
Vumar said:
PPM recommendations are inaccurate and confusing! To help you through this confusion, please see the following chart.
1 MS/CM = 10 CF e.g. 0.7 EC = 7 CF.
Conversion scale from PPM to CF and EC.
EC Hanna Eutech Truncheon CF
MS/CM 0.5 0.64 0.70 0
0.1 50 PPM 64 PPM 70 PPM 1
0.2 100 PPM 128 PPM 140 PPM 2
0.3 150 PPM 192 PPM 210 PPM 3
0.4 200 PPM 256 PPM 280 PPM 4
0.5 250 PPM 320 PPM 350 PPM 5
0.6 300 PPM 384 PPM 420 PPM 6
0.7 350 PPM 448 PPM 490 PPM 7
0.8 400 PPM 512 PPM 560 PPM 8
0.9 450 PPM 576 PPM 630 PPM 9
1.0 500 PPM 640 PPM 700 PPM 10
1.1 550 PPM 704 PPM 770 PPM 11
1.2 600 PPM 768 PPM 840 PPM 12
1.3 650 PPM 832 PPM 910 PPM 13
1.4 700 PPM 896 PPM 980 PPM 14
1.5 750 PPM 960 PPM 1050 PPM 15
1.6 800 PPM 1024 PPM 1120 PPM 16
1.7 850 PPM 1088 PPM 1190 PPM 17
1.8 900 PPM 1152 PPM 1260 PPM 18
1.9 950 PPM 1260 PPM 1330 PPM 19
2.0 1000 PPM 1280 PPM 1400 PPM 20
2.1 1050 PPM 1344 PPM 1470 PPM 21
2.2 1100 PPM 1408 PPM 1540 PPM 22
2.3 1150 PPM 1472 PPM 1610 PPM 23
2.4 1200 PPM 1536 PPM 1680 PPM 24
2.5 1250 PPM 1600 PPM 1750 PPM 25
2.6 1300 PPM 1664 PPM 1820 PPM 26
2.7 1350 PPM 1728 PPM 1890 PPM 27
2.8 1400 PPM 1792 PPM 1960 PPM 28
2.9 1450 PPM 1856 PPM 2030 PPM 29
3.0 1500 PPM 1920 PPM 2100 PPM 30
3.1 1550 PPM 1984 PPM 2170 PPM .1
3.2 1600 PPM 2048 PPM 2240 PPM 32

Found on a 2007 RIU thread, just passing/bumping good information~
Click to expand...

a lo of newbie eyes glaze over right about now. thats why we get repeat questions. charts are good but you need context to understand them.
 
jimmyjam22

jimmyjam22

Active Member
My nutrient meter already has all the conversions on it lol just confusing when you don't know what PPM scale people are referring to.. When they are saying for example "i started off at 200 ppm and ended up at 1000 ppm" I find that really confusing... are they referring to EC x 500 or EC x 700????
 
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