# Ppm is high....help **URL:** \ **Category:** Grow Cycle\ **Created:** [December 6, 2020, 2:15am UTC](https://ilgmforum.com/t/ppm-is-high-help/59264 "2020-12-06T02:15:20Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![Timjames28](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/timjames28/32/424019_2.png) [@Timjames28](https://ilgmforum.com/u/Timjames28)\ **Post date:** [December 6, 2020, 2:15am UTC](https://ilgmforum.com/t/ppm-is-high-help/59264/1 "2020-12-06T02:15:20Z")
Hey all Just measured my runoff and it was 2165…since I’m a new grower, I’m not sure why it’s so high or what to do about it. ---
**Author:** ![BobbyDigital](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/bobbydigital/32/1220557_2.png) [@BobbyDigital](https://ilgmforum.com/u/BobbyDigital)\ **Post date:** [December 6, 2020, 2:47am UTC](https://ilgmforum.com/t/ppm-is-high-help/59264/2 "2020-12-06T02:47:12Z")
What medium are you growing in. That looks pretty standard for soil ---
**Author:** ![Dbyers248](https://avatars.discourse-cdn.com/v4/letter/d/9de0a6/32.png) [@Dbyers248](https://ilgmforum.com/u/Dbyers248)\ **Post date:** [December 6, 2020, 2:50am UTC](https://ilgmforum.com/t/ppm-is-high-help/59264/3 "2020-12-06T02:50:27Z")
Do a couple flush straight RO water before any more feedings. What’s the ppm of water/nutes going in? ---
**Author:** ![Timjames28](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/timjames28/32/424019_2.png) [@Timjames28](https://ilgmforum.com/u/Timjames28)\ **Post date:** [December 6, 2020, 4:18am UTC](https://ilgmforum.com/t/ppm-is-high-help/59264/4 "2020-12-06T04:18:18Z")
Growing in Ocean forest soil in a 5 gallon fabric pot ---
**Author:** ![BobbyDigital](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/bobbydigital/32/1220557_2.png) [@BobbyDigital](https://ilgmforum.com/u/BobbyDigital)\ **Post date:** [December 6, 2020, 4:21am UTC](https://ilgmforum.com/t/ppm-is-high-help/59264/5 "2020-12-06T04:21:24Z")
Need some details. How long have they been going, have you added any additional nutrients? Ocean Forest starts at around 3000-5000 ppm. If these aren’t added nutrient ppms, you’re fine. ---
**Author:** ![Timjames28](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/timjames28/32/424019_2.png) [@Timjames28](https://ilgmforum.com/u/Timjames28)\ **Post date:** [December 6, 2020, 5:29pm UTC](https://ilgmforum.com/t/ppm-is-high-help/59264/6 "2020-12-06T17:29:20Z")
I’ve been giving them Tiger Bloom and they are in the 8th week of flower right now ---
**Author:** ![imSICKkid](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/imsickkid/32/550192_2.png) [@imSICKkid](https://ilgmforum.com/u/imSICKkid)\ **Post date:** [December 6, 2020, 5:32pm UTC](https://ilgmforum.com/t/ppm-is-high-help/59264/7 "2020-12-06T17:32:23Z")
If they are in their 8th week of flower then their metabolism is most likely starting to slow up and should be finishing within the next couple weeks. ---
**Author:** ![BobbyDigital](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/bobbydigital/32/1220557_2.png) [@BobbyDigital](https://ilgmforum.com/u/BobbyDigital)\ **Post date:** [December 6, 2020, 5:32pm UTC](https://ilgmforum.com/t/ppm-is-high-help/59264/8 "2020-12-06T17:32:39Z")
Are you doing the flush schedule? Sounds like you may have some salt buildup ---
**Author:** ![Timjames28](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/timjames28/32/424019_2.png) [@Timjames28](https://ilgmforum.com/u/Timjames28)\ **Post date:** [December 6, 2020, 7:08pm UTC](https://ilgmforum.com/t/ppm-is-high-help/59264/9 "2020-12-06T19:08:21Z")
I plan on starting the flush today…is that a good idea? ---
**Author:** ![BobbyDigital](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/bobbydigital/32/1220557_2.png) [@BobbyDigital](https://ilgmforum.com/u/BobbyDigital)\ **Post date:** [December 6, 2020, 7:15pm UTC](https://ilgmforum.com/t/ppm-is-high-help/59264/10 "2020-12-06T19:15:38Z")
Yeah, with fox farms nutrients they call for a flush every 4 weeks ---
**Author:** ![Timjames28](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/timjames28/32/424019_2.png) [@Timjames28](https://ilgmforum.com/u/Timjames28)\ **Post date:** [December 7, 2020, 1:28am UTC](https://ilgmforum.com/t/ppm-is-high-help/59264/11 "2020-12-07T01:28:53Z")
Hey one last question for you all…when I’m doing my flush, should I flush until the runoff ppm is zero? Or what’s a good number to get down too? ---
**Author:** ![BobbyDigital](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/bobbydigital/32/1220557_2.png) [@BobbyDigital](https://ilgmforum.com/u/BobbyDigital)\ **Post date:** [December 7, 2020, 1:38am UTC](https://ilgmforum.com/t/ppm-is-high-help/59264/12 "2020-12-07T01:38:01Z")
I aim for under 1000 for salt buildup. For final, pre-harvest flush I usually stop around 300.