I bought angel fishes two, two days ago. I kept them along with two gold fishes at first. I noticed that gold fishes are creating a mess and pushing Angels and Angles were falling. I did my home work on DuckDuckGo and learned about Angel fishes that their native is african river with less water flow and warm environment. I took another bowl yesterday and re-designed the oxygen into two probes such that it gives less disturbance for angelfish bowl and more to gold one's and kept some shells which my dad collected when I was 10. I put some epsom salt and few drops of anti-chlorine, Paracidol and Aquatic healer. I put some warm water into the bowl even. They are coming up and swimming. Their gills don't flap fast as they were when no oxygen was there so I assume it's not about oxygen. I don't know what to do. One of the fish is falling on to the side and coming up. it's doing the since half an hour. I don't want them to starve and die. I kept pellets and even dry shrimp but they won't eat anything.