I typed up a huge response to this and the system had already logged me out because typing took so long. I hate that and I also hate the periodic maintenance this board goes through for days at a time. What the hell is going on?

You can use distilled water instead of r/o if you want.
Mature plant ppm is usually around 1100 or so.
botanicare bloom is short on phosphorus. They sell you the "remedy" with Hydroplex, probably to get more money out of you.
Dynagrow makes good one-part ferts with all micro nutrients in single containers, one for veg, one for bloom.
What do you think of botanicare so far?
You want a ppm/ph meter if you can get it.
micro nutes are boron, sulphur, etc. needed in small amounts.