Yellow spots on leaves... what are they telling me?

Flush meaning make x3 the volume of the pot drain out with water. Mind you never had to flush that much yet but that's what it says todo
Mild = very weak

only you know what that really means you know ... what ....i mean? :p

Add epsom salts (2 tea spoons per galon)
Haha, well... so 6" grow cubes... triple that volume and maybe a gallon? So a gallon of really dilute N-P-K plus some epsom salt... once a day? Twice a day?
 
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