Listen to Burned Haze and Scubascrog. Legit info.
Calcium Nitrate
Potassium Nitrate
Magnesium Nitrate
Mono Potassium Phosphate
Mono Ammonium Phosphate
Magnesium Sulfate (Epsom Salt)
All the traces or if you want to cheat Peters STEM
Phosphoric Acid (ph down)
Agsil16
done
or if like said above that's a little too over your head:
Jacks Hydro
Peters Stem
Calcium Nitrate
Magnesium Sulfate
PUT THE BOTTLES DOWN AND STOP PAYING FOR WATER - This was my biggest cost in growing and probably the stupidist thing I have ever done with my grows
edit: oh yeah this is a must have for all of that:
https://scienceinhydroponics.com/20...hydroponic-nutrient-calculator-program-o.html
That alone will let you reverse any nutrient formula for about 1/100th of the cost of the bottle.
edit 2:This also if you want to break down ppm's easily
http://www.angelfire.com/cantina/fourtwenty/articles/profiles.htm
As far as Silica, if you want bottled stuff,
Pro-tekt is you best bet as far as any of them. Steer clear of all the other ones.