Kole tang Fin rot?

[Newbie4045]

Hi all,
I was looking at my yellow eye kole tang and noticed that his upper fun and tail fin have ridges on them. Is this fin rot? Not sure what could be wrong to causes this. His diet consist of daily strips of Nori, frozin PE mysis shrimp 3 times a week, and pellets/flakes the other days. All food soaked in selcon. Thoughts?

Parameters:
PH: 8.0
Ammonia: 0.0
Nitrite: 0.0
Nitrates:0.0
Phosphates: 0.15

 

[F i s h y]

tough to see in the picture. But I do see a maroon clown. Is it possible there is some territorial aggression going on? Give us some more info, how long have you had the tang, did it go through QT, have you added any new fish since putting it in the display?

 

[Newbie4045]

tough to see in the picture. But I do see a maroon clown. Is it possible there is some territorial aggression going on? Give us some more info, how long have you had the tang, did it go through QT, have you added any new fish since putting it in the display?

I've had the tang for about 3 months now. He did go through 5 weeks quarantine. The other fish in the tank are 1 royal gramma, 1 6 line wrass, 1 gold stripe maroon, 1 goldxlightning maroon. Total 5 fish all seem healthy and eating (the tang spends the day eating non stop!)
. No new fish in the display and the yellow eye kole is the biggest. I have seen no aggression between the kole and the largest maroon. I will try to post another picture tomorrow when he is out and about.

Forgot to mention earlier, the water temp is kept between 76 and 78 (see apex picture). Also the tank is 75 gallons.

 

[Newbie4045]

Here are some additional pictures. The white spots are just food particles floating around (feeding time). See the ridges in the tail? Similar on top fin.

 

[F i s h y]

Looks suspiciously like bite marks to me almost perfectly sized for your clown... maybe someone else will chime in. I just can't say for sure. Are the edges white, kind of slimy looking? Like there is a film on them?

 

[Newbie4045]

Looks suspiciously like bite marks to me almost perfectly sized for your clown... maybe someone else will chime in. I just can't say for sure. Are the edges white, kind of slimy looking? Like there is a film on them?

No film that I can see. I have not seen them fight at all since first adding them together. In the beginning the kole was the one chasing the maroon the first couple of days. Ever since then they seem to get along just fine. No sign of aggression between any of them. If anything, the most aggressive fish in my tank is the 6 line wrass which killed my orchid dottyback =(.

 

[Newbie4045]

Update...he has developed some blotchy spots on his face. See attached pictures.

Any thoughts on what this could be? He is eating a lot and behaving normally. Again I feed Nori everyday, mysys shrimp every other day, and a combination of pellet/flakes on the other days (all soaked in selcon and garlic guard).

None of the other fish are experiencing any symptoms.

 

[garyfri]

@Newbie4045 any update? What happened.