The Blue Chocolate Angelfish is basically a blue smokey with more gray coverage on the body. This is because it has 2 smokey genes. We find that on Chocolates the blue is much more pronounced as they get older. Sometimes it is'nt easy to tell a chocolate from a blue smokey until they are adults. But being that we are experts with Angelfish genetics we have no problems at all. These are actually Blue Chocolate leopards which is the result in adding one zebra gene to their makeup.