Something is eating my angel

[Todd]

I just looked at my tank this morning to find my Coral Beauty Angel to be missing some fins. His tail and small side fins are all chewed on. I have had him for about 3-4 mos. and no problems. I have added a Raccoon Butterfly recently, but they swim around each other all the time. The angel seems to be acting a little weird, just staying in one corner of the tank right now. Usually he is roaming around the rock all day. He is eating right now, so I guess that is a good sign. Should I remove him or just keep the others fed more? I will be monitoring all day. Thanks

[quixand]

Sounds like he's pretty stressed out. Do you have a QT you can put him in for a week or two?

[melosu58]

There is a disease that will eat the fins up and make them chewed on. Read under viral and bacterial infection and it talks about fin rot

http://www.aquariumadvice.com/viewtopic.php?t=7

[lando]

I agree, fin rot is more likely a culprit. This is due to stress, most often declining water conditions. Can you list temp, Ph, NH3, NO2, NO3, SG? Diet also plays a major role...what, how and how often are you feeding?

[melosu58]

I`m going to move this to sick fish forum. How are things going?

[Todd]

He doing OK, I guess. His fins still don't look good. I have not moved him out of the tank. I have been working alot, lately. Do I have to remove him? I read that there immune systems can fight it off. My water parameters are good(sg 1.022 PH 8.0 Nh,NO2,NO3 all 0). I do a 15% water change every 2 weeks or so.

[melosu58]

I would do it every week for a couple weeks. The only way they can fight it off is with pristine water conditions.

[lando]

Diet?