DonW
R.I.P.
Why do you feel herbivores (grazers) only should be fed twice a week?
Seems counterintuitive to natural conditions.
I guess if you have plenty of greens growing in your tank then there would be no need to feed daily. Most sps tanks dont have enough green algae to feed to many herbivores. All depends on the tank and what and how big your trying to feed, really no right or wrong.
Don