Derived from ocean seaweed,  this organic kelp tonic is a great source of added nutrients for your houseplants. Organic kelp lends over 70 types of nutrients and minerals, that aid in the overall health and growth of your plants. Product Details: * 8 fluid oz bottle * Use a cap full per 2 quarts of water * Can be used alongside other diluted fertilizers as well.  * store in a cool dark place in between uses.