Can two different species of peacock bass be kept together? I currently have 3 silver arowanas (18") and two plecos and am thinking about getting an oscellaris (6") and an orinocensis (5"). There's two orino's at the fish store going for $120 usd and an oscellaris at a different store going for $60 usd. Im definately getting the oscellaris, but am wondering if i should get one or both orinos or just another oscellaris.