07-22-2013, 12:16 PM
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Originally Posted by Sakura8
Hey, Chesh asked me to take a look at your thread. Looks like are a couple possibilities for the swollen fin.
One is your angelfish could be developing lymphocystis, a usually nonfatal virus that causes cauliflower-like cysts on the fins and body. Depending on the severity, the cysts could be localized in one spot and stay on that fin or they could spread more. You can't treat this virus but it almost always clears up on its own after a few months. Only dangers are if the cysts are on the head and interfere with eating or if a cyst bursts and gets infected.
Second possibility is not so pleasant. :( It is glugea, an internal protozoan that initially manifests itself as white pimple-like cysts on the fins and body before going on to destroy the internal organs. There is no known treatment and the disease is fatal. Unfortunately, because the cysts look just like lympho cysts, there's no way to know which one your angelfish may have without an expensive veterinarian pathology test.
My best advice would be to keep the angelfish as isolated as possible and avoid any possibility of cross-contamination as glugea is definitely infectious and there may be several species-specific types out there; one of my sources speculates there is even an anabantoid-specific type. :(
To ease some of the angelfish's distress, you could try adding API Stress Coat or Kordon Fish Protector to the water, or possibly trying an AQ salt dip to help promote slime coat growth.
I hope it's just lympho. Best of luck and keep us updated.
EDIT: I forgot to mention that it seems like glugea is fairly rare so chances are it's lympho.
Thank you so much!
I'm going to set the 29 gallon up today, but in the mean time I can keep this angel in the 10 gallon (although I don't want to) just to isolate him.
Any thoughts about that?