Anyone using Silica (Potassium Silicate) as pH up?

[the_bot]

@monkeyman

But, be aware that too much silica can make the leaves very tough to the point that they may become brittle. I generally use about 1/4 ml per gal at each watering and stop using it a couple of weeks before harvest.

Is this what your are referring to? Ive never had that issue. Check out that post by @monkeyman it is really good.