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
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.