How much food do you go through with your inverts?

I spend about $40-50 a month in food for my inverts. Buying Hikari sinking, carnivore and algae pellets, assorted veggies, feeders (fish and snails) and plants. I usually buy one bag each of the Hikari pellets, 10-20 fish and 30-40 snails, 3 or 4 plants (hornwort, anacharis, java moss) and mix bag of veggies.

Sometimes I have to buy more, but usually this takes care of it for the month.

Round 7 dollars a month, but I only have shrimp. Algae wafers and bloodwroms