Determined late this week that the toasted tips are likely nute-lockout, not K-lacking as some plants are clawing and showing multiple deficiencies like calcium, and magnesium. It may be that my home built soil had enough P-K in the form of langbeinite, azomite, steamed bone meal sea bird guano and that it did not need a bloom booster. We’ll just water it for a couple if weeks to deplete some of its stores before we five it more bloom nutes.