Originally Posted by fishman793
.... also, do you have a planted tank? if so, is it heavily planted? because angels like heavily planted aquariums since it is their natural habitat....
A regal angel is a saltwater fish. What you are describing is relevant to freshwater angels.
This may help.....
Aquarium Fish: The Regal Angelfish (Pygoplites diacanthus) — Advanced Aquarist | Aquarist Magazine and Blog
"Regal angelfish don't adapt easily to captive life."
"It's difficult to duplicate the natural diet of regal angelfish in captivity. I've found that they will thrive in captivity on a varied diet consisting of food items such as red nori seaweed, Pro-V gelatin food, mysis shrimp, and chopped krill. I roll sheets of the dried red macroalgae (Seaweed Selects from Ocean Nutrition) and place it in a clip or rubber-band it to a small rock."