I have two Banggais in my 65g for almost two years. Both were doing well. There was and is aggression, but the chased one was always able to escape to another spot in the aquarium. I only saw a damaged fin once. Both were eating well and growing.
Three days ago one was missing, and I found it stuck between my in-tank skimmer and the glass. Upon freeing it, it swam in loopy circles and sank to the bottom. I put it in a large net hanging in the tank. It clearly has significant fin damage. There are no signs of external parasites. Soon after putting it in the net it started to be positioned belly up at the surface, and it still does so on day three. Its breathing is about 70 per minute. It does move its fins, but does not feed.
I observed a black dot at the anus. I do not know if this is normal for the species.
Every morning I am sure the fish will be dead, but the status appears unchanged.
What is my best course of action? Thank you.
Three days ago one was missing, and I found it stuck between my in-tank skimmer and the glass. Upon freeing it, it swam in loopy circles and sank to the bottom. I put it in a large net hanging in the tank. It clearly has significant fin damage. There are no signs of external parasites. Soon after putting it in the net it started to be positioned belly up at the surface, and it still does so on day three. Its breathing is about 70 per minute. It does move its fins, but does not feed.
I observed a black dot at the anus. I do not know if this is normal for the species.
Every morning I am sure the fish will be dead, but the status appears unchanged.
What is my best course of action? Thank you.