DOS is a two-part concentrated nutrient formula for use with proportionate mixers (DOSATRON). It is the same great quality as our one-part base just divided into two-parts to maintain balance as a stock concentrate.
At a dilution rate of 1:100, 100 lbs of DOS will treat 12,000 gallons of water. The concentrate containers will be mixed as follows:
Part A: 360 grams/gallon
Part B: 240 grams/gallon
You can adjust part A from the highest recommended dose down in order to control the feed strength and balance out the consumption. The concentrate can sit 2+ weeks if covered and not introduced to light. DOS is very stable when insulated against air drafts and kept in the dark.