What are these black spots?

[_cpate3_]

Hello Everyone!

Today I noticed that my male clownfish has a couple of decently sized black spots on its side by the fin. These are most definitely new and happened overnight. The only new thing I have added to the tank were a bunch of corals including a hammer coral, a few SPS, and a BTA. Behavior is still normal and it looks too large of a spot to be black ich. I am wondering what your thoughts are on this diagnosis

 

[vetteguy53081]

Hello Everyone!

Today I noticed that my male clownfish has a couple of decently sized black spots on its side by the fin. These are most definitely new and happened overnight. The only new thing I have added to the tank were a bunch of corals including a hammer coral, a few SPS, and a BTA. Behavior is still normal and it looks too large of a spot to be black ich. I am wondering what your thoughts are on this diagnosis

Looks like anemone stings known as hyper melanization
Will subside on its own

 

[Jay Hemdal Verified Community Expert]

Probably a sting from the hammer coral, should heal on its own after a few weeks.

Jay