In your photos I see a bare bottom tank with no rock work. Might want to put it in an established tank.
That was just the 5 gallon tank I used for the drip acclimatization. By now it is in a established tank with live rock, corals and macro algae.
Tank mates?
All are dwarfed by the regal and none showed any aggression to her.
The regal in my avatar took three weeks to eat and now eats like a pig. I am sure it will be fine, very nice QT tank.
Try fresh clams from the grocery store. Open it up and drop 1/2 of on the bottom of the tank for her to pick at. You will probably need to leave the room and eventually they seem to find it.
Tried that already with oysters - the clowns and even the marine bettas picked on it but the regal didn't even look at it. The only thing she regularly eyes are the zoas.
Here a question for you regal angel expert. I have a 400 G mixte reef with 6 big tangs that are pretty peaceful, a couple wrasse, one emperor juvenile and some anthias. Do you think it is possible to add two regal to this set up? I know that i should have think about it earlier but i initially didn want any angel and i changed my mind about it.