I feel like an idiot asking this question

I have always had freshwater tanks up until now. But I got my 75g tank up and added some livestock. I have 2 small clownfish (as well as some clean up crew, not much) and I can't figure out how to feed them. lol. It's such a big tank with 2 powerheads moving a lot of water. When I drop the granules in, they move so quick and the fish never see it. I'm used to freshwater flakes and the fish going to the surface to eat them.

Any advice how to feed my little guys, as well as how often?