When Do You Use Antibiotics For Fish in the USA

When fish are under the weather, they can be treated with antibiotic pills, which are popped into their tanks and absorbed through the skin. Ailing fish are often given the same antibiotics—amoxicillin, ciprofloxacin, penicillin—that humans take, Maya Wei-Haas reported for Smithsonian in 2017. What do fish need antibiotics for? Antibiotics merely control the population growth…