tropical fish food
you really cannot trust the front of a package of fish food. it does increase the overall protein, but there’s some argument that fish raised on a diet of soy do not grow as large and produce more waste. spirulina is also a great color booster for blue and green fish. carotenoids bring out the colors of yellow, orange and red in the animals that eat them (eating shrimp rich in carotenoids is what makes a flamingo pink).
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