Yup I think you are correct. I would say without a doubt potassium deff. You want to up the potassium and Phos in bloom.
I maintain potassium by adding a little silica all the time as I use it as my up and constantly over correct my down as I am a tool. The issue with silica is in soil it takes a while to degrade to a point that is can be taken up well so it is good to just add a little all the time really. You can't really over do the silica. The potassium is hard to overdo especially in bloom.
So yeah give them a double dose of silica but make sure to pH that correctly. First I would just top feed the bat guano lightly because you intend to use some in the next tea right?
I maintain potassium by adding a little silica all the time as I use it as my up and constantly over correct my down as I am a tool. The issue with silica is in soil it takes a while to degrade to a point that is can be taken up well so it is good to just add a little all the time really. You can't really over do the silica. The potassium is hard to overdo especially in bloom.
So yeah give them a double dose of silica but make sure to pH that correctly. First I would just top feed the bat guano lightly because you intend to use some in the next tea right?