The friendliest place on the web for anyone with an interest in aquariums or fish keeping!
If you have answers, please help by responding to the unanswered posts.
Some of the angelfish experts on here might be able to tell you. But you need to tell how big they are. Most people refer to them being dime, nickel, quarter, fifty-cent, or silver dollar size, not including the fins.
I would say less than six also. The black one is called a black marble, and the other is a golden angel (90% sure one that, he/she may change color as it gets older then my opinion would change). The only way to tell sex for sure is to wait until the breed like said above, but there are several other less accurate ways to tell but you still need to let them mature a bit to see those clues