I mix my freshwater fish and saltwater fish in one aquarium, 100 % freshwater not brackish
video :
http://tinypic.com/r/nleul3/3
http://tinypic.com/r/rruqep/3
video :
http://tinypic.com/r/nleul3/3
http://tinypic.com/r/rruqep/3

. I'm going to go home and see if I can fit my arowanas into my reef tank. Salt water arows, that would be awesome!