I've read everything from once a week to daily. Right now I'm target feeding Reef Roids every other day. It looks like the heads that were attacked by my Peppermint's are still receding but the other piece is feeding nicely. Dosing All and CA every other day to keep my levels up. Nitrates at +/- .5, Phosphates at 0 with my new low-range Salifert kit.