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Aquatic predators such as oscars, catfish, and pet turtles feed on other fish in the wild. But is feeding live fish a good idea in a home aquarium? It depends on the species and how comfortable you ...

Goldfish are hardy, fairly simple to care for, and eye-catching, so it’s no wonder they’re popular pets. These passive freshwater fish are ideal for renters who can’t have other types of pets, ...