My full grown super veil Angelfish, Poseidon, is having a bit of an emergency and I don't know what to do!
I just got him three weeks ago at my LFS
... he was expensive but beautiful. This whole time he was gotten along wonderfully with all of the other tank mates without a problem! However, this last week, I've found one of my other angelfish, Koi, chasing him around the tank and picking on him. Poseidon sometimes, but rarely, chases back. 90% of the time it's Koi doing the chasing and poor Poseidon can do nothing but swim away, even though Koi is only half dollar sized, and Poseidon is larger.
Now today I just realized that his papilla is ripped to shreds and on top of it, the whole area where it protrudes from is extremely swollen. It looks extremely painful.
It wasn't there yesterday, so it happened sometime today or last night. I just realized it about ten minutes ago. His behavior hasn't changed a lot, but Koi has since seemed to stop picking on him. They were added the same time, and up until they started bickering, there has been no aggression whatsoever with my angels. They have all gotten along great.
My big concern is how to treat Poseidon. I don't know if it is truly an injury from Koi or if it is an infection. If it is an infection, how do I treat it?
I have an empty 10 gallon I could seperate him into, or a 30 gallon tank that is currently finishing its cycle. I haven't checked in 3 days but if I did a large water change and continued them daily, I'm sure it would work out fine. I'm just concerned about what to do about him. He's my prized angel and on top of it, he was very expensive, since he's a super veil. He's the prize of my tank!
55 Gallon tank
Ammonia: .50 (been doing 50% water changes every other day - I just moved and tank is cycling all over again. It bounces from .25-.50)
-1 full grown (Poseidon)
-4 half dollar sized/slightly larger
-7 quarter sized
2x female mollies (are leaving soon)
10x Cory Catfish
1x Upside Down Catfish
Side Note: the angels are overstocked to get breeding pairs. Breeding pairs will be removed once they form.