Where can an investigatory project be found that is about fish food or the growth of fish fed different kinds of fish food?
What you could do for fish fed different kinds of fish food, is buy like 3 or 4 fish tanks (make sure you have at leased an airstone for filtration), buy like 3 Orange-Throated Darters per tank ( just saying that because they’re smaller than goldfish), obviously the fish foods, and feed each tank a different kind of food. After about a week or 2 observe the different colors they are (make sure they are the same color starting out), how active they are, ect. Have fun!!!