I'm not a FF user, I like my Canna.

But if FF is the only available set, you'll need the trio. They have a chart online with weekly dosages listed. With FF, it's recommended to feed half the recommended dosage twice per week, instead of giving them the full dose at one time.

FF nutes are notorious for being very strong, so make sure to start with 1/4 strength and work your way up. It's also good to do a small flush with plain water once a month to help with the salt build-up (flush with the container's equivalent volume of ph'd water, 5gal of water for a 5gal pot).

This is how RustyTrichome does it, you can check out some of his posts. If you do a google search like this:

fox farm nutes site:boards.cannabis.com

you'll get several threads to read through.

Happy growing :jointsmile: