May I ask a follow up question?
I bought two Clownfish a couple of months ago. One was a bit larger than the other. Everything was fine until a few days ago. Suddenly the larger, more dominant one was missing its tail. And I noticed that the smaller fish had grown to be equal in size. The injured Clownfish died the next day.
The remaining Clownfish seems fine except for a tiny tear in its top fin. I will wait at least a week to be sure there is no sign of illness before adding any new fish.
I am trying to decide whether or not to add a smaller Clownfish or leave this one as a single. The only other fish is a diamond goby, who seems fine. The tank is a 32g BioCube, about four months old. The parameters are stable. I have snails, small crabs, peppermint shrimp, pulsing Xenia, branching GSP, a mushroom coral, and a new Torch coral.
Thoughts? Thank you!