Due to tank size, I am looking for arrow look alike fish as an alternative. I know Arros are unique ancient fish, so I am not looking for genically closed substitute, just resemblance in look and demeaner. Gars and Arapaima will be close, but they get even bigger. I can think of one fish, Red Tail Chalceus, that has some resemblance and don't get big: long body, large scales, predatory, and upper water column swimmer.
Are there other arrow like fish out there that don't grow into giant?
Are there other arrow like fish out there that don't grow into giant?