My guys get San Francisco Bay Brand frozen goldfish food once (sometimes twice) a week along with the other foods listed above.
SFBB Goldfish and Koi foodFormulated to sink so the goldfish do not eat off the surface and take in air. This product is a complete diet for all goldfish and contains only natural ingredients, including Anacharis, carrot, brine shrimp, zucchini, bloodworms, krill, bewt, Pollock, menhaden oil, sodium alginate, astaxanthin, vitamin premix: wheat flour, Vitamin Aacetate, cholecalciferol (source of vitamin D3), vitamin B12 supplement, riboflavin, niacin, calcium pantothenate, folic acid, menadione sodium bisulfate complex, pyridoxine hydrochloride, thiamine mononitrate, biotin, inositol, L-ascorbyl-2-polyphosphate, betaine, d-alpha mixed tocopherols (source of vitamin E).
Ingrediants: Anacharis, Artemia franciscana, romaine lettuce, krill hydroslate, zucchini, carrots, bloodworms, menhaden oil, sodium alginate, astaxanthin, Vitamin premix: wheat flour, Vitamin A acetate, cholecalciferol (source of vitamin D3), vitamin B12 supplement, riboflavin, niacin, calcium pantothenate, folic acid, menadione sodium bisulfate complex, pyridoxine hydrochloride, thiamine mononitrate, biotin, inositol, L-ascorbyl-2-polyphosphate, betaine, d-alpha mixed tocopherols (source of vitamin E)
Crude Protein Min 2.3%
Crude Fat Min 0.35%
Crude Fiber 1.17%
Moisture 95.0%
CYA disclaimer

-Information used for my post is from San Francsco Bay Brand's website and intended to be used for info on their product only.
From keeping Green Terrors most of my life, I have come to trust this company I never had a negative reaction from using their product and when I saw they had frozen food especially for Goldies, I jumped right on it