Thank You Arati and Prattreef for the book suggestions! Much appreciated and will definitely look into them.
I happen to have Joyce Wilkerson book on clownfishes that I got about 30 yrs ago. Totally forgot I had the book all these years. When Hurricane sandy wiped out my downstairs and had to put stuff into a POD, I rediscovered the book! Actually had a 20 gal saltwater back then with some clownfishes, damsels, featherduster ...
My all time favorite book series was The Modern Reef Aquarium by Nilsen and Fossa. It's bit dated now, as are the first two volumes of Sprung's books, but a terrific read. Scott Michael Reef Fishes is terrific too, and a crime to the hobby that the remaining three volumes, apparently long finished, remain unpublished.