Pros and cons of quarantine tank?

  • Get the NEW AquariaCentral iOS app --> // Android version will be out soon!


AC Moderators
May 13, 2009
Tallahassee, FL
Real Name
Welcome to the forums, glad you found the site!

Not sure if you had a question related to quarantining but you bumped a pretty old thread. Aslo not sure if you are planning a marine tank or freshwater but you may want to copy/paste your post into your own "hello, i'm new" thread located in one of the General/New to the Hobby forums. If you need help navigating the site, feel free to shoot me a PM.


AC Members
Apr 7, 2008
SJ Cali
I usually formulin the fish then they go into a q system for about 2 weeks with methylene blue.. just cuz I'm more worried about shipment stress
  • Like
Reactions: northernlady


AC Members
Jan 24, 2020
So, from what I think, the pros are having a healthy fish go into the tank without risking disease being spread and plaguing the tank, thus saving many headaches and such.

The cons, in my opinion are that a quarantine tank is usually small, has no sand, no live rock, no nothing pretty it is not a natural environment for the fish, which I would think could further stress the fish and make it worse off in some situations. By this I mean that by not inserting it into a more natural habitat, having it in a little box for a while can be harmful to it.

My solution, I guess would be to do a nice long freshwater bath for all new fish before putting them in the display...say about a half hour or so. This way anything that may be on the fish already could be killed off and it could be ready to join a more natural place and you run less risk of stress I would guess.

A quarantine tank needs some thin substrate, a few plants are good too. you need to quarantine several weeks so it needs to be a decent size-- maybe 20 L?? a freshwater bath is fine for the dog but for fish--- quarantine , LOL.