fish injured

Hello all, Two months I had an angel fish stuck in a decoration which he managed to recover from and was doing well. A two days ago he seemed to be having trouble moving around the tank or going for food. This morning he was struggling at the bottom of the tank. The other two angels were...

I purchased new 2 white sharks, in travelling one white shark got cut, any medicine or treatment please prefer me.

One of my dwarf neon rainbowfish doesn't seem to be doing well...I just looked in and saw him looking very roughed up and barely swimming. I moved him to a small bowl of water (i don't have a quarantine tank at the moment) because the water current was just blowing him all around the tank and i...