I’ve been using Masterblend 4-18-38 as my base nutrients. It’s 3 part with Calcium Nitrate, Magnesium Sulfate, and the 4-18-38 base. It’s on Amazon or eBay for $30 for 12.5 lbs, enough to mix abut 2500 gallons.
Supplement with silica, hydroguard, and a pk boost after the stretch. I’ll hand feed...