I have 6 amano shrimp, 4 cory cats, and 10 Cardinal Tetras. Can I add more fish? If so, how many? Also, I feed my tetras a small scoop of frozen food, which the consume in a time around 1-2 minutes, everyday around 7pm. They look hungry during the morning and between feedings. I know that you're not supposed to overfeed, but should I be feeding them more than once a day? Am I not feeding enough?
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