Seems like forever I've been using this general hydroponics three-part fertilizer. I know how it works, that's about the best I can say for it, because its yields are most definitely nothing to write home about. I use a lot of bloom boosters to try to increase it.
It may be surprising to hear that even many people with a backyard or other area that might work perfectly well for traditional gardening choose to grow their plants indoors instead.
Articles on hydroponics gardening from Advanced Nutrients. Know hydroponics myths, hydroponics tips for maximum yield & troubleshooting with general hydroponics growing.