Blue spot puffer dark area

[Jay Hemdal Verified Community Expert]

It’s a fish only tank other than two urchins.

It won’t spread to the urchins, and probably wouldn’t have spread to other fish. Quarantine is always helpful!
Jay

 

[LibertyL5]

You will have much less heartache and save much more money if you learn and master the art of medicated quarantine before introducing any new livestock to your display tank.

Thank you for your reply. How large should this QT be and what kind of medication should I dose it with and where do I get this said medication? Sounds like a good idea to quarantine them before adding them from now on.

 

[LibertyL5]

RIP to our spotted blue puffer What ever it was took over his whole little body so quickly…. I did remove him into a quarantine and added antibiotics, but it was just too late.
Crazy how a fish can be thriving and then just die in a few days. Thank goodness everyone else seems healthy and happy.