Pelleted fish food as a source of micro nutrients?

This is what I'm using as an addition to my current mixture as a source of micro nutrients as well as macronutrients. The brand I use is from walmart in an orange container by the name of Tetra Fin fish pellets. It's a 1.8oz container. I compost it into my soil well before I plant.

Does anyone else use any kind of fish food?

What do you think about using this? Opinions please.