If they are the one fish you have, then no. Otherwise, quarantine equally in a similar tank right before introducing them to the other fish. Many thanks! We're happy this was handy. Proven for 20 years, furnishing high quality and really responsive expert services like; servicing boilers, plumbing companies, routine https://bookmark-vip.com/story18723845/rumored-buzz-on-how-to-isolate-tanks