Im thinking thats precisely the case, I now know my error and will be getting a full nute system to supplement my soil here soon .
Jacks bloom boost has been good to me but it needs some phosphate and could use cal mag. ;p
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looks like only the newish growth maybe iron
Thanks man. It is new growth bad pic though.
is it corrected yet? most likely a ph thing narrow window for some of the trace minerals iron is one. iron is non mobile usually things move from old growth to new to keep the plant going yellow leaves at the bottom that work up iron goe the other way down.