What kind of fish are good to put with Angels? I know that they can be aggressive, and I have one big one that is about 4 years old that picks on other fish. He takes chunks out of their fins. I have had several fish die lately, and I think it is him. I have lost two guramis, two tetras and two other angels, all in the past three months or so.
The only fish in my tank who never seem to look worse for the wear are that angel fish, my plecko, and my other algae eater. Therefore, I don't think it is a water quality issue, or else they would all show signs of damage.
Is it possible that this angel fish is telling me that he wants to be alone in my tank?
Oh, by the way, this angel fish also has a large tumour just behind the fin on the underside of its body. What is that from?