Sensi Grow
5lt AB set

Sensi Grow Nutrient has been specifically designed for the Growth stage of plant development.
Advanced Nutrients (the makers of Sensi) claim that it is also designed to outperform any other 2-part nutrient on the market.
Sensi Grow is the product of "extensive research" and field testing by the manufacturers and as a result it is one of the biggest selling nutrients in North America.