Since it is recommended to have only one angelfish in an aquarium due to aggression, what dwarf angel would suit me the best? 55gal Fowlr (only have a frag of green star polyps atm). I love the red/blue colors of dwarf angelfish. So far my choices are a Flame angel, Bicolor angel, African Pygmy Cherub angel, or a Pygmy Cherub Angel. Which would be easiest to care for? Which are more common in a lfs and which would cost the most? Least?