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KilgoreTrout started grow question 3 years ago
Ok, so I’m starting to see a deficiency. Yellowing between the veins at uppermost leaves. My ph is on par. I’m maintaining my grow per normal with one change. I added Carbo load at 2ml/g.

Could that be the problem?
I think I’m going to flush today and dump my tank. Restart.
Winter 2018/19
21 weeks
Winter 2018/19 KilgoreTrout
Black Domina
70 comments · 3 years ago
Resolved
Week 14
Leaves. Veins - yellow between
OutForReal answered grow question 3 years ago
Yellowing between veins can be a lot of stuffs bit if you say that it can be spot on the upper leaves then you can be sure it is an immobile nutrients deficiency as the mobile nutrient def is visible on the lower leaves 1st and then spread from the bottom to the top. In you case it can be Iron , manganese or zinc. What is the cause of your trace elements deficiency? I don't know, it can be a straight deficiency which mean you under feeding them a bit or it can be an excess of another nutrient that cause a lockout and made the absorption of the other nutrients difficult. I don't think that carbo load can be responsible for that but you should use a nutrient that contain some trace elements to get rid of your deficiency. Your idea to flush today can be a good solution to reboot the medium :blush::+1: