I've just come back from 2 weeks of uni and noticed my angelfishhas raised bumps on the flat side of its body. It's been in the my10 gallon tank for 4 weeks, and is in with a Chinese Algae Eater (6inches) and a leopard danio I had left over from a shoal that haveslowly died over the years. The tank temperature is 25c and thewater is clean, there are also various plants and statues in thetank. I looked online and some people have suggested that theChinese Algae Eater can be very aggressive, however this doesn'texplain the raised bumps?