@MrStickyScissors I thought that was it, but the tips of some of the leaves are almost completely yellow.
@hells canyon genetics I didn't think copper as it's supposed to make the leaves darker.
@Bud Tipps Could be zinc I suppose, I'm leaning toward sulfur.
I'm using dynagrow foliage pro at 2.5mL per gallon. I'm also using a home made silica blast in replacement of Silicablast by making a solution with Agsil 16h. I'm trying out a calcium nitrate/magnesium nitrate calmag formula I did too. Same amounts I usually use except I normally add dry salts with epsom salt instead of magnesium nitrate.
I'm guessing either nute burn (I usually have started plants in soil until they're a foot tall before using this formula). Or Sulfur, as the epsom salt in the solution adds sulfur that I'm not getting with the diy calmag.
The potassium problem was part cloner and part I didn't water them too long.
