high 420kwats;1715234 said: I'm subbed and have questions. What deficiency is this? I use 3 Part BPN-vitablue-seaweed-root magic-calmag PPM 830 PH 5.5 Click to expand... Nitrogen deficiency. Either caused by lack of N or high PH. Always check the PH of your drainage. It helps you understand what's going on in the growing medium.