Growers who want to see a fruiting boom should check out Solo-Tek Bloom (0-4-5)! Grotek formulated this simple-to-use one-part fertilizer to deliver essential vitamins and minerals to plants when they need them for impressive results at harvest time. In addition to its yield-increasing abilities, it also promotes stable pH levels within the growing medium, and because it is super-concentrated, a little goes a long way.