Advanced Nutrient Fabulous 250ml 4 PaK Voodoo Juice 250ml, Piranha 250ml, Tarantula 250ml, Bud Candy 250ml Great value multi pack - limited time only highly concentrated blend of powerful beneficial microbes for use from the beginning of your grow through to the second week of flowering. Beneficial microbes are naturally found in soil, and work with the roots of your plant to provide greater nutrient availability and to help to protect against root-diseases.