I have a 29 usg w/2 yasha gobies, a percula clown, and a yellow clown goby. Inverts that eat food are 3 hermits + 1 pistol shrimp + 7 nass. snails.
I feed about 3x per week. Mostly frozen marine cusine, formula 1 pellets 1 time a week. I always add selcon and garlic to my frozen and I never rinse my frozen food either.