I have seen datnoids around being kept with archers, I have an archer tank set up now and wanted to possibly add a, or some datnoids. I don't know too much about them except what i've ran across in the forums. Are there any brackish species? (i would assume so since i've seen them in brackish tanks.) I know they grow slow but how big do they typically get, and will they get along with archers, scats, and columbian catsharks?