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whatever it was it seems to have been associated with the change out. Growth is back to normal with just a few burnt tips for damage.

This is rdwc. There is no run off. Current culture nutrients

Did a nutrient change out and switched bulbs to hps a day ago for flower. On the upper terminal points I am now Noticing burnt tips and the edges of the effected leaves and turning light while the areas around center vein remain dark. Looks like zinc or mag problem maybe. Any thoughts? Leaf...