ok for those interested in the blue fertilizer.
written on the package:"Yes, your mono potassium phosphate is blue. There is a worldwide shortage of MKP. We were able to find this MKP which was intended to be used as a Foliar Spray. To make MKP into a foliar spray they simply add a blue food coloring. It is harmless to plants and fish, and is only visible in high concentrations."
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