On Monday I did some trimming of a good number leaves that were covering up budsites and then fed with my standard amount of GH MaxiBloom. Water may have been ph'd slightly low, but nothing massively different. Since then almost all the remaining leaves have rapidly started to look like this one. From looking at charts it appears to be a phosphorus deficiency; should I up the amount of P or just do a flush of plain, ph'd water, then my standard feed in case it is just a ph issue?
