Snowstorm Ultra is a commercial product that has been used by many growers with great success. It contains potassium to increase essential oil as well as resin and terpene production in plants, and can be used along with your regular nutrients. It contains only potassium, and no nitrogen or phosphorous.
It is nothing more than 3% potassium hydroxide aka caustic potash, and can be made for micropennies a gallon. Food grade potassium hydroxide is around $15 for 2 pounds on Amazon, and cheaper elsewhere. This recipe calls for around 5 teaspoons in a liter, which is a half a cup per gallon, so 2 pounds could technically make 32 gallons of this stuff, and that rate of usage is a teaspoon per gallon of water, so this solution could treat 24,226.6 gallons of water which would be enough for 5 tankers full of water, which is enough for your entire town to use lol. Considering that 5 gallons of this stuff will run you approx $400 bucks if you buy it premade, that’s quite an impressive markup for some cool looking graphics and plastic bottles.
RECIPE:
30ml of food-grade potassium hydroxide
1 quart of distilled water
DIRECTIONS FOR USE:
Soil: Use 5 ml (1 tsp.) per gallon of water and apply every watering, or every other watering. The first dose is usually applied when lights are switched from veg to flowering. During peak flower development the dosage can be slowly increased, and can be used right up to harvest.
Hydroponics: Use 2 ml/gallon and run continuously. Always be cautious if running nutrients over 800 ppm.
Foliar: Use 2-5 ml/gallon and apply once a week. Stop foliar feeding once flowers start to bulk up.
Clones: Helps to increase the rate of growth of developed roots of clones, and works well with EZ-clone type setups. Add 2.5 ml/gallon to your watering schedule. It can also be used as a foliar spray at the same rate, 2 to 4 times/week.