Canadian Xpress Tanlin is the biological way to deal with the root-eating fungus gnat and scarid fly. Tanlin is a completely safe, effective, odour-free and non toxic nutrient additive used to keep growing media and root system free of unwanted visitors.
Directions
Shake well before use. As a preventative, add to regular feed once a week at 1ml (40 drops) per 100ltrs. For more intensive use, treat every three days using the following methods:
Soil/Coco
Mix 1 drop per 2lts of water and thoroughly drench growing medium.
Recirculating
Add to nutrient reservoir at 1ml (40 drops) per 100ltrs. If medium is not completely saturated by your watering system, saturate by hand watering.
Even saturation increases effectiveness. Do not use hydrogen peroxide at any time during treatment. Exceeding stated dose is not harmful to plants.