AN sensi line is confusing me can someone help ? Will I need to use grow with the autos ? Or shall I just use bloom part b ? Bloom part a is pure N ?

I didn't know how your getting N tox with such a low amount. Then I seem you are using soil. Cut out the grow nutes altogether most likely your soil has enough. I got the very same when I mixed with soil. They don't need grow or bloom with soil for at least 4-5 wks check my grow out in soil I used bloom ran into N tox straights away, stalled my plant. And with soil. You only need to give 1 feed with nutes a wk. Even if only giving such a low dose it should be only once a wk, and even then it's too soon. AN grow&Bloom don't work well in soil early on unless Its a light mix. Happy growing good luck