OilyCann„¢ is a natural calcium, magnesium & humic acid liquid plant supplement formulated with ZERO nitrogen. Horticulturally engineered for indoor/outdoor plants, hydroponics and soil gardening. Recommended for plants with calcium and magnesium deficiencies or plants that require increased amounts of calcium and magnesium, such as during the production of buds and blooms. OilyCann will also aid in buffering water with higher levels of sodium. Can be used alone or together with liquid and dry fertilizers. Indoor/outdoor Plants. Hydroponics and soil.