# Bergmans nutrient chart **URL:** \ **Category:** Grow Cycle\ **Created:** [January 28, 2019, 5:30pm UTC](https://ilgmforum.com/t/bergmans-nutrient-chart/27546 "2019-01-28T17:30:04Z")\ **Posts on this page:** 14\ **Page:** 1
**Author:** ![Fluffy](https://avatars.discourse-cdn.com/v4/letter/f/9e8a1a/32.png) [@Fluffy](https://ilgmforum.com/u/Fluffy)\ **Post date:** [January 28, 2019, 5:30pm UTC](https://ilgmforum.com/t/bergmans-nutrient-chart/27546/1 "2019-01-28T17:30:04Z")
I just started week 1 veg yesterday. I’m using bergmans nutrients this is the schedule they say to follow. One, do I need to do a water change every week or just add in the next dose of nutrients? 2,I’ve been told to go with half strength on the nutrients. Do I do that or actually follow the bergmans nutrient guide for hydro? It also calls for 750 ppm. I’m at 336 using 5ml of calmag per gallon as directed. Do I need to add more to get it up to the 750 ppm? ![image](https://global.discourse-cdn.com/growingmarijuana/original/3X/c/1/c10dc20fb5ca2d95d8ae02bf5fe1d018b433e283.png) ---
**Author:** ![Sixpackdad](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/sixpackdad/32/189133_2.png) [@Sixpackdad](https://ilgmforum.com/u/Sixpackdad)\ **Post date:** [January 30, 2019, 4:24am UTC](https://ilgmforum.com/t/bergmans-nutrient-chart/27546/2 "2019-01-30T04:24:39Z")
I am in an amended soilless medium called roots organics original potting soil… I am using Bergman nutrients. I use 1/4 to 1/3 of the recommended dosage, and pH to 5.8. In my first grow I used full dosage and it wound up messing up the ppms of my soil, and hurting my plants. Someone who uses true hydro will be here shortly. ---
**Author:** ![Fluffy](https://avatars.discourse-cdn.com/v4/letter/f/9e8a1a/32.png) [@Fluffy](https://ilgmforum.com/u/Fluffy)\ **Post date:** [January 30, 2019, 6:25am UTC](https://ilgmforum.com/t/bergmans-nutrient-chart/27546/3 "2019-01-30T06:25:39Z")
I did the seedling nutrients at half strength and calmag and still had low ppm and ph between 5.8-5.9. I did my water change and added the first round of the growtime nutrients close to 3/4 strength and 5ml of calmag per gallon of water and still only brought my ppms up to 320 ---
**Author:** ![Sixpackdad](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/sixpackdad/32/189133_2.png) [@Sixpackdad](https://ilgmforum.com/u/Sixpackdad)\ **Post date:** [January 30, 2019, 6:32pm UTC](https://ilgmforum.com/t/bergmans-nutrient-chart/27546/4 "2019-01-30T18:32:29Z")
@MattyBear @dbrn32 any suggestions for hydro support on berg nutes? ---
**Author:** ![MattyBear](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/mattybear/32/536479_2.png) [@MattyBear](https://ilgmforum.com/u/MattyBear)\ **Post date:** [January 30, 2019, 6:56pm UTC](https://ilgmforum.com/t/bergmans-nutrient-chart/27546/5 "2019-01-30T18:56:22Z")
I would double check the ppm meter… make sure it’s working because that sounds low for 3/4 strength… ---
**Author:** ![Fluffy](https://avatars.discourse-cdn.com/v4/letter/f/9e8a1a/32.png) [@Fluffy](https://ilgmforum.com/u/Fluffy)\ **Post date:** [January 30, 2019, 7:07pm UTC](https://ilgmforum.com/t/bergmans-nutrient-chart/27546/6 "2019-01-30T19:07:58Z")
Would it make a difference since I’m using ro water? ---
**Author:** ![Fluffy](https://avatars.discourse-cdn.com/v4/letter/f/9e8a1a/32.png) [@Fluffy](https://ilgmforum.com/u/Fluffy)\ **Post date:** [January 30, 2019, 7:08pm UTC](https://ilgmforum.com/t/bergmans-nutrient-chart/27546/7 "2019-01-30T19:08:23Z")
When I put it in the ro water it reads zero ---
**Author:** ![dbrn32](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/dbrn32/32/533801_2.png) [@dbrn32](https://ilgmforum.com/u/dbrn32)\ **Post date:** [January 30, 2019, 7:15pm UTC](https://ilgmforum.com/t/bergmans-nutrient-chart/27546/8 "2019-01-30T19:15:33Z")
Have you tried measuring it out by weight? Most of the guys I see using powdered nutes recommend that. ---
**Author:** ![Fluffy](https://avatars.discourse-cdn.com/v4/letter/f/9e8a1a/32.png) [@Fluffy](https://ilgmforum.com/u/Fluffy)\ **Post date:** [January 30, 2019, 7:27pm UTC](https://ilgmforum.com/t/bergmans-nutrient-chart/27546/9 "2019-01-30T19:27:23Z")
Not sure how to do that on the guide it only shows me per gallon or liter ---
**Author:** ![Fluffy](https://avatars.discourse-cdn.com/v4/letter/f/9e8a1a/32.png) [@Fluffy](https://ilgmforum.com/u/Fluffy)\ **Post date:** [January 30, 2019, 7:31pm UTC](https://ilgmforum.com/t/bergmans-nutrient-chart/27546/10 "2019-01-30T19:31:22Z")
I just checked manual for tds meter and says no need for customer calibration ---
**Author:** ![dbrn32](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/dbrn32/32/533801_2.png) [@dbrn32](https://ilgmforum.com/u/dbrn32)\ **Post date:** [January 30, 2019, 7:32pm UTC](https://ilgmforum.com/t/bergmans-nutrient-chart/27546/11 "2019-01-30T19:32:08Z")
Grams is a measurement of weight. There’s 3.875 liters per gallon. So at full strength .9 grams per liter would be about 3.5 grams per gallon. ---
**Author:** ![Fluffy](https://avatars.discourse-cdn.com/v4/letter/f/9e8a1a/32.png) [@Fluffy](https://ilgmforum.com/u/Fluffy)\ **Post date:** [January 30, 2019, 7:44pm UTC](https://ilgmforum.com/t/bergmans-nutrient-chart/27546/12 "2019-01-30T19:44:25Z")
Thanks I’ll try that next week at water change ---
**Author:** ![dbrn32](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/dbrn32/32/533801_2.png) [@dbrn32](https://ilgmforum.com/u/dbrn32)\ **Post date:** [January 30, 2019, 7:54pm UTC](https://ilgmforum.com/t/bergmans-nutrient-chart/27546/13 "2019-01-30T19:54:37Z")
I would see if gets you closer to target ppm anyway. After I posted, I was also wondering if you stirred adequately to get all of the elements suspended. I would stir vigorously for a few minutes. And then regularly every couple of minutes for a few cycles before testing. ---
**Author:** ![Fluffy](https://avatars.discourse-cdn.com/v4/letter/f/9e8a1a/32.png) [@Fluffy](https://ilgmforum.com/u/Fluffy)\ **Post date:** [January 30, 2019, 8:06pm UTC](https://ilgmforum.com/t/bergmans-nutrient-chart/27546/14 "2019-01-30T20:06:44Z")
When I check the ppm I will usually let the autofeeder run for 30 minutes to circulate the water then stir the reservoir and check