Hey man, I like the bathroom mother room. Thinking about making a laundry room mother room so I can bud in my veg room lol. Nice to see this as the first thread rather than: AN, how much crap can you add to your res?
Anyways, Ph up is partly potassium silicate, which is what most silca products are btw. I use dyna gro protect at 2.5ml a gallon and never have to use ph up. I personally add all my silica, or ph up to my res before I mix my nutes, adding potassium silicate after calcium can cause a lockout.
I know this is all about keep it simple, but not all additives are bad. Floralicious plus, and koolbloom liquid first, then dry really help me out. Didn't care for the flora nectar or flora blend. I suggest looking at the ingredients and using google to learn about what they do. Like someone in here earlier didn't know that silica is potassium silicate which is more or less ph up. Tohigh is the man, treat whatever that guy says as gospel and you be really happy.