so i got this baby black arowana about 2 weeks ago. it was about 3 inches. it maybe grew an inch. I was wondering how long it will take till it grows about 8-9 inches? I am feeding it NLS floating pellets ( about 1.5-2 mm) and baby hikari green staple pellets. surprisingly it prefers the nls (only fish i have in my entire hous that likes NLS). My blackie's tail is already to begin to fade in color, how long will it take so i can put it in with some tank mates?!