![Leaves are yellow from bottom up. Is it normal? Nitro deficiency? PH lockout? - Troubleshooting - I Love Growing Marijuana Forum Leaves are yellow from bottom up. Is it normal? Nitro deficiency? PH lockout? - Troubleshooting - I Love Growing Marijuana Forum](https://global.discourse-cdn.com/growingmarijuana/original/3X/1/d/1df5733370293b0cc362068ab0affa7049f5befd.jpg)
Leaves are yellow from bottom up. Is it normal? Nitro deficiency? PH lockout? - Troubleshooting - I Love Growing Marijuana Forum
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