CX Horticulture's T-Drops are a highly effective solution for every gardener growing any type of plant in any type of system. Extremely concentrated – 1 ml makes 100 liters. One 20 ml bottle makes 2000 liters. Safe to use with any nutrient regiment. Will not affect beneficial microorganisms. Non-toxic and completely inert; does not interact with the plant in any way. T-Drops, like all other CX Horticulture products, are designed specifically for consumable crops. T-Drops are plant, pet and people safe. Directions: As a maintenance, add T-Drops to your regular feed once a week at 1 ml (40 drops) per 100 L (25 gal). For more intensive use, treat with T-Drops every three days in the following methods: Soil/Coco: Mix 2 drops per 4 L (1 gal) of water. Thoroughly drench growing medium. Recirculating: Add to your nutrient tank at 1 ml (40 drops) of T-Drops per 100 L (25 gal). If your medium is not completely saturated by your watering system, thoroughly saturate your medium by hand watering. Ensure T-Drops are mixed evenly throughout your medium. Additional Tips: Even saturation greatly increases the effectiveness of T-Drops. Hydrogen Peroxide will greatly reduce the effectiveness of T-Drops. You cannot overfeed with T-Drops and can use through flush. There are no after-taste effects. Must be stored between 37 F and 72 F (2 C – 22 C). Refrigerate if necessary. Do not freeze.