I am only concern about the water and the air line, I know for sure you can't have it in carry on luggage and check in luggage is freezing in the cargo. As for ray it should be fine since ray have small mouth and they are not a type to go after shell. As for your aro and since its an asian aro plus community tank so they already have their hand busy. My aro comm never border other fish except its own kind. It is my silver that kill 2 of my 8" peacock bass and damage my 9" green terror head. If your is 14" and up then it might swallow a 4" frt whole .