Maroon clown gash on Dorsal fun

[40breederzach]

I came home today and notice my bigger of two maroon clowns has a gash on its Dorsal fin. Can anyone help me figure out what happened and tell me what I need to do to watch for etc.

 

[EmdeReef]

Could you take pics without the blues on?

 

[40breederzach]

 

[EmdeReef]

likely an injury due to aggression, could also be running against sharp rocks.

Most times these things heal on their own if there’s no further aggression or issues. I don’t like the discoloration around the wound so either you can remove the clown and treat with antibiotics now or observe for a day or two and see if it progresses and then treat.

If there’s any aggression between the two I would move this one to an acclimation box at least

 

[40breederzach]

They seem to be past physical altercation they haven’t fought in a week or so. I just watched my CBS try to corner it could that be the culprit?

 

[EmdeReef]

They seem to be past physical altercation they haven’t fought in a week or so. I just watched my CBS try to corner it could that be the culprit?

CBS coral banded shrimp? Then absolutely yes

 

[40breederzach]

Yes I have a coral banded shrimp
I’ve had it for about 6 months and it hasn’t tried to attack any of my other cardinals,basslet, blenny, or tang

 

[40breederzach]

I just got the two maroons last week

 

[EmdeReef]

I just got the two maroons last week

Yes I have a coral banded shrimp
I’ve had it for about 6 months and it hasn’t tried to attack any of my other cardinals,basslet, blenny, or tang

Yeah they will sometimes go rogue. Not sure if there’s a way to get them to calm down, maybe try feeding it more but doubt it.

#reefsquad?

 

[DSC reef]

I agree, they can go rouge. I'd remove the shrimp and see if the wounds stop happening.

 

[HB AL]

If your water quality is great the wound should heal on it's own within a week, I wouldn't worry about it other than what caused it especially if it happens again.

 

[40breederzach]

I tested two days ago and have 0 nitrate nitrite and ammonia

 

[HB AL]

I dont test any of those except nitrate once a month. I really just go off what my corals look like, if they are colorful and growing then the water is pristine IMO so it would be good enough for the fish.

 

[davocean]

The CBS could be the culprit, but my first thought was to ask if you have a tang, and I see you do, maybe keep an eye on that too.

The wound should heal on it's own pretty fast.

 

[40breederzach]

The CBS could be the culprit, but my first thought was to ask if you have a tang, and I see you do, maybe keep an eye on that too.

The wound should heal on it's own pretty fast.

I do have a tomini tang but he has been in the tank for almost a year and hasn’t shown aggression to any fish up to this point.

 

[Dom]

Yikes!