# \#ppm **URL:** https://ilgmforum.com/tag/ppm/84.md [Latest](https://ilgmforum.com/latest.md) · [Categories](https://ilgmforum.com/categories.md) · [Tags](https://ilgmforum.com/tags.md) --- ## [First time hydro 4th grow in general](https://ilgmforum.com/t/first-time-hydro-4th-grow-in-general/114343)
**Author:** [@Mcanter89](https://ilgmforum.com/u/Mcanter89)\ **Replies:** 12\ **Last updated:** [September 19, 2024, 7:21pm UTC](https://ilgmforum.com/t/first-time-hydro-4th-grow-in-general/114343 "2024-09-19T19:21:51Z")
So just started a hydro dwc grow , right now my seedlings have germinated and sprouted im at about 1.5-2 weeks since dropping seed in a root riot pod just want to know if anyone can show me what week or what my plant sh… --- ## [Please help with ec/ppm runoff questions](https://ilgmforum.com/t/please-help-with-ec-ppm-runoff-questions/110807)
**Author:** [@alienroots](https://ilgmforum.com/u/alienroots)\ **Replies:** 8\ **Last updated:** [May 17, 2024, 6:31pm UTC](https://ilgmforum.com/t/please-help-with-ec-ppm-runoff-questions/110807 "2024-05-17T18:31:56Z")
Hello everyone, I am new to this forum. I’ve only been growing on and off a couple of years. I have some questions please. Regarding EC/PPM, input and runoff. Currently I have one plant- Godfather OG Auto. I bought phot… --- ## [Autoflower soil Low PH Runoff with high ppm](https://ilgmforum.com/t/autoflower-soil-low-ph-runoff-with-high-ppm/93319)
**Author:** [@SoggyCashew](https://ilgmforum.com/u/SoggyCashew)\ **Replies:** 33\ **Last updated:** [February 11, 2024, 6:48pm UTC](https://ilgmforum.com/t/autoflower-soil-low-ph-runoff-with-high-ppm/93319 "2024-02-11T18:48:14Z")
Hello All, Im still kinda a beginner and am having trouble with my grows. This is my second round of AutoFlowers and they are almost in week 8 and they look like i have a calcium deficiency BUT after checking my runoff m… --- ## [I Need Somebody Really Smart to Convert Some Numbers Please](https://ilgmforum.com/t/i-need-somebody-really-smart-to-convert-some-numbers-please/107866)
**Author:** [@ShureGreen](https://ilgmforum.com/u/ShureGreen)\ **Replies:** 50\ **Last updated:** [January 14, 2024, 9:17am UTC](https://ilgmforum.com/t/i-need-somebody-really-smart-to-convert-some-numbers-please/107866 "2024-01-14T09:17:53Z")
Ok. Here I am. 2nd indoor grow. 1st went well. Yield was low but quality was phenomenal and well above top shelf. I grow Orange Bud, Agent Orange​:heart::white\_heart::blue\_heart:, and Super Lemon Haze. This time, right … --- ## [PPM and a few misc questions](https://ilgmforum.com/t/ppm-and-a-few-misc-questions/101977)
**Author:** [@Jherb](https://ilgmforum.com/u/Jherb)\ **Replies:** 27\ **Last updated:** [June 19, 2023, 7:55pm UTC](https://ilgmforum.com/t/ppm-and-a-few-misc-questions/101977 "2023-06-19T19:55:20Z")
I just want to start by saying thanks to everyone that has given me input so far. This is a great community and I really appreciate it as a beginner. Ive been trying to incorporate a lot of great advice that ive been gi… --- ## [Trying to calibrate my tds ec meter](https://ilgmforum.com/t/trying-to-calibrate-my-tds-ec-meter/95898)
**Author:** [@420noob](https://ilgmforum.com/u/420noob)\ **Replies:** 7\ **Last updated:** [December 6, 2022, 9:38pm UTC](https://ilgmforum.com/t/trying-to-calibrate-my-tds-ec-meter/95898 "2022-12-06T21:38:55Z")
Ok so I added 1g of NaCl to 1 liter of distilled water. The tds came to 1023 instead of 1000 is this close enough to consider human error or residue in measuring container? The EC reads 21/44 what does this mean. That … --- ## [How can ec be sooo high and plants all are healthy!](https://ilgmforum.com/t/how-can-ec-be-sooo-high-and-plants-all-are-healthy/94154)
**Author:** [@Jestertz](https://ilgmforum.com/u/Jestertz)\ **Replies:** 3\ **Last updated:** [October 8, 2022, 12:44am UTC](https://ilgmforum.com/t/how-can-ec-be-sooo-high-and-plants-all-are-healthy/94154 "2022-10-08T00:44:47Z")
I just checked my ec on my plants. Planted 5 seeds and only gave them bergmans best at correct doses. And watered reg water. Every 4. To 5 days it swit hed it back n forth. So like nutes every 8 days. How aft… --- ## [Hydroponic 2500 PPM](https://ilgmforum.com/t/hydroponic-2500-ppm/92644)
**Author:** [@Ebb](https://ilgmforum.com/u/Ebb)\ **Replies:** 4\ **Last updated:** [September 2, 2022, 12:36am UTC](https://ilgmforum.com/t/hydroponic-2500-ppm/92644 "2022-09-02T00:36:13Z")
Hydroponic growers…what PPM do you shoot for during flower. Currently im pushing around 2500ppm week 3 in flower and have absolutely no signs of stress. It was accidental due the fact ive been using a tds pen that was 5… --- ## [PPM question for ya](https://ilgmforum.com/t/ppm-question-for-ya/89731)
**Author:** [@ShockDog](https://ilgmforum.com/u/ShockDog)\ **Replies:** 16\ **Last updated:** [July 15, 2022, 12:24am UTC](https://ilgmforum.com/t/ppm-question-for-ya/89731 "2022-07-15T00:24:19Z")
Hey all. I went through a lot of the old posts to try and find a definitive answer on this and was unable. So I will ask here. I am growing in FF Happy Frog soil. I keep my ph on or around 6 and my well water I use h… --- ## [Runoff Numbers - High PPMs and Two Questions](https://ilgmforum.com/t/runoff-numbers-high-ppms-and-two-questions/87956)
**Author:** [@GrnyGrows](https://ilgmforum.com/u/GrnyGrows)\ **Replies:** 58\ **Last updated:** [June 13, 2022, 4:53pm UTC](https://ilgmforum.com/t/runoff-numbers-high-ppms-and-two-questions/87956 "2022-06-13T16:53:20Z")
White Widow auto. End of 11 weeks from seed in ground. Soil FFHF + FFOF + Pearlite. Indoor grow. Temps 80 degrees, 45% RH. Light 800 - 1000 PAR. All in flower, several already flushed for harvest over the next week or tw… --- ## [Help! New Grower with high PPM](https://ilgmforum.com/t/help-new-grower-with-high-ppm/64375)
**Author:** [@Cannabisshark](https://ilgmforum.com/u/Cannabisshark)\ **Replies:** 13\ **Last updated:** [March 29, 2021, 4:34pm UTC](https://ilgmforum.com/t/help-new-grower-with-high-ppm/64375 "2021-03-29T16:34:01Z")
Hey guys, don’t be fooled by my cool name. I just love cannabis and sharks. I am a brand new indoor grower. I am using Foxfarm Ocean Forrest soil. I have my plants in a 5 gallon fabric pot that I transplanted to almost 2… --- ## [Which numbers are the most reliable - of course we are talking ph and ppm](https://ilgmforum.com/t/which-numbers-are-the-most-reliable-of-course-we-are-talking-ph-and-ppm/52070)
**Author:** [@beardless](https://ilgmforum.com/u/beardless)\ **Replies:** 39\ **Last updated:** [October 23, 2020, 1:27am UTC](https://ilgmforum.com/t/which-numbers-are-the-most-reliable-of-course-we-are-talking-ph-and-ppm/52070 "2020-10-23T01:27:47Z")
Here we go again. I am sampling a new soil mix to obtain its base ph and ppm for my next grow. Here is the soil mix The ph is fairly consistent but the ppm readings are all over the place 1 & 1a I used a 6" nurse… --- ## [Water question - tap or distilled?](https://ilgmforum.com/t/water-question-tap-or-distilled/53397)
**Author:** [@jordan1](https://ilgmforum.com/u/jordan1)\ **Replies:** 18\ **Last updated:** [September 10, 2020, 1:07am UTC](https://ilgmforum.com/t/water-question-tap-or-distilled/53397 "2020-09-10T01:07:34Z")
Hey all, quick question. I’m gonna start an autoflower in FFOF with added perlite. I’m new to PPM and I have a quick question about the water I use. My tap water is 225ppm, my distilled drinking water is 18ppm. Should I …