Those blue marble veils are stunning! I'm currently trying to make some myself. I plan to cross my male blue marble pearlscale with a female veil pearlscale zebra (unfortunately all I have left to work with after coming home to some deaths after a vacation). I love your collection of angelfish!
You can put them in a large aquarium with a lot of them together as seen in my part 2 video. Aggression will literally be nonexistent. If you have a small tank, then lowering the temperature might do it.
