Some here mix strains fine, some dont. Im running 3, they are getting along ok but time will tell. Zone is a sterilizer and you can flush with it, but it may not be worth the cost. Silica can be used but it seems 80% of what I read is to avoid it in the uc. I am not a uc pro but I will say treat it as if it were any normal growing method. Read all you can like homework. 10% of what you do is actual applying what you choose to "use" from reading.
Keep this simple man, simple, simple, simple. I use dm gold a+b and zone only. My only additive is cal mag at 2ml a gallon. some say mix cal mag then nutes and some say the exact opposite. I believe it can work either way personally as Ive done it many times w no Ill effect..
What Ive seen with uc is that plants respond quickly!! Not always positive for us new guys.
I add cal mag to 120-180 ppm in r.o water (1-2ml per gal)
I add a+b to my strength I desire.
I add zone at 1-2 ml per gallon depending on my own personal stress... hahah but either is fine. In that order. I would add "my nutes"weaker (325-350ppm) and start feeding my topoff higher and slowly raise my ppm. I have done a few things that made a huge difference for me. I created a log to monitor progress morn and night.
I watch ph but dont adjust it. Only thru my feeding schedule in my topoff will i adjust it now. My plants are finally raging because of it. Every time I adjusted or added or changed some shit my plants slowed and it took 3-4 days to regain normal growth, you gotta give em time to respond enough to make a proper diagnosis.
try to not cloud your first run w add.27 or silica or anything else. There are pros here doing exactly the above mentioned formula and having good success!
