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A Natural Liquid Calcium, Magnesium & Humic Acid Supplement formulated with ZERO Nitrogen. Horticulturally engineered for Indoor- Outdoor Plants, Hydroponic & Soil Gardening. Can be used alone or together with liquid & dry fertilizers. Recommend for plants with Calcium & Magnesium deficiencies. OilyCann will also aid in buffering water with higher levels of sodium. Available sizes: Pints, Quarts, Gallons.