What causes this?

[BENT STIX]

All of my blue reef chromis look like this (6 of them). Only other fish in tank is a yellow tang, black ice clown and 3 green chromis. Water parameters are normal and all other fish are doing great.

 

[Martin's Reef]

Maybe Brooke disease?

 

[ritter6788]

Blue reef chromis are impossible to keep IMO. I don't know anyone that has success with them. I don't know what causes it and I don't know that anyone knows.

https://www.reef2reef.com/forums/fi...-chromis-chromis-cyaneus-success-stories.html

 

[Tahoe61]

Look at Vibrosis, although there is not a lot of information. Basically it's a bacteria that causes skin ulcers and seems to be a common infection with Chromis.

 

[mainereefer]

looks like the other cromis took him out

 

[BENT STIX]

Thank you for the help. I don't think the chromis took him out as they all died.