How to Make a Hydroponic Nutrient Solution Using Epsom Salt

1. Fill your large tub or bucket with 5 gallons of distilled water. Distilled water works better because it lacks chlorine and other deposits that can be found in tap water.
2. In the smaller bucket, mix 1 cup of distilled water, 1 tsp. of Epsom salt, 1 tsp. of calcium nitrate and 2 tsps. of hydrophonic fertilizer. Epsom salt is available at most pharmacies and grocery stores; nitrate and specialized fertilizer are available at garden centers, hardware stores and nurseries.
3. Pour the mixture from the smaller bowl into the larger tub and stir with a stirring stick for two to three minutes to ensure the solution is well mixed.