I have to honestly say I never quarantined. Then I bought a Yellow Eyed Tang. It brought a horrible disease to my tank. I am still not sure what it was. However, the result was a dead Royal Grama, and a Bicolor Blenny. My Six Line Wrasse, Mandarin, and Yellow Goby escaped unhurt. I now have a 15 gallon tank all set up, and I will quarantine the next fish I get fo a month at least.
