Updated On September 3rd, 2017
Pet's info: Fish | Unknown - Fish | Male
Answered By Dr. Massimo Orioles, DVM, Cert AVP, MRCVS 77
Veterinarian
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The best way to make sure the new fishes are not infected is to place all new fishes in a quarantine tank for at least 2-3 weeks to make sure they are eating, free of disease, and are able to recuperate in a stress-free environment. No preventive treatment needed. Please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.
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