Post seperated for better responses... 8)
If the Fiji damsel is blue with a black spot near the tail then it is called a blue "devil" damsel and for good reason. They are increadibley miserable fish and quite aggressive. Not the best sort of fish for anything other than an aggressive
FO or
FOWLR setting
IMO.
If anything I would suggest nixing the Fiji's and sticking with the chromis. I would aslo urge caution on a dwarf angel in a 26
gal tank. They will still get upwards of 4" and may not do well in a smaller set up. You may want to opt for a pigmy instead, just be mindful they will both nip corals.
Cheers
Steve