thats part of the research on each fish/consumption rates you'll find it by checking out similar tank threads in research, amounts they eat ranges fish to fish. good job on the disease prevention planning part.
above my weekly feeding is because I recommended a clean up crew only, early fish will give you nearly instant algae challenges, so I didnt recommend them. once you do use fish, then they'll require feed in excess of my mention. my mention was just that your tank is ready to start, and being new to it all, fish should wait and clean up crews should be first go.