# Yellowing fan leaves early in flower

**URL:** <https://ilgmforum.com/t/yellowing-fan-leaves-early-in-flower/11830>\
**Category:** Nutrients\
**Created:** [June 7, 2017, 6:00pm UTC](https://ilgmforum.com/t/yellowing-fan-leaves-early-in-flower/11830 "2017-06-07T18:00:58Z")\
**Posts on this page:** 4\
**Page:** 2

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**Author:** ![Donaldj](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/donaldj/32/76518_2.png) [@Donaldj](https://ilgmforum.com/u/Donaldj)\
**Post date:** [June 17, 2017, 3:34am UTC](https://ilgmforum.com/t/yellowing-fan-leaves-early-in-flower/11830/21 "2017-06-17T03:34:00Z")

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I have a measuring cup which I fill with solution and take cap off fill cup with enough to submerge tip

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**Author:** ![bob31](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/bob31/32/76512_2.png) [@bob31](https://ilgmforum.com/u/bob31)\
**Post date:** [June 17, 2017, 10:43am UTC](https://ilgmforum.com/t/yellowing-fan-leaves-early-in-flower/11830/22 "2017-06-17T10:43:19Z")

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@Donaldj the meter with the push button calibration do you have a brand and model number? I’m thinking of upgrading!

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**Author:** ![NTMAREMACH](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/ntmaremach/32/89331_2.png) [@NTMAREMACH](https://ilgmforum.com/u/NTMAREMACH)\
**Post date:** [June 17, 2017, 11:02am UTC](https://ilgmforum.com/t/yellowing-fan-leaves-early-in-flower/11830/23 "2017-06-17T11:02:18Z")

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@bob31 I swear by my Bluelab meters. Once a month the check marks will disappear letting you know it’s time to clean and calibrate them. The ph meter has the storage solution inside the cap which you hang up when done using. They each have a cleaning and calibration kit available.

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**Author:** ![bob31](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/bob31/32/76512_2.png) [@bob31](https://ilgmforum.com/u/bob31)\
**Post date:** [June 17, 2017, 11:16am UTC](https://ilgmforum.com/t/yellowing-fan-leaves-early-in-flower/11830/24 "2017-06-17T11:16:30Z")

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Thanks brother I will check those out!

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