yes, flakes are generally made from the same ingredience.
But ocean nutrition flakes like prime reef or forumula 1 or 2 is only like a couple bucks.
A thing about saltwater fish, i would try to mix their diet up, my clowns get flake about once aweek, a mixture of sprilina flakes, formula 2 and prime reef. Then ORA GLO every day with some frozen mysis and brine once aweek.