Hey guys, i purchased a silver arowana over a month ago and he is about 7" now so still juvenile. I have him/her in a 75 gal tank for now, and im quite aware that i will need to upgrade soon. Today i purchased an Oscar that is about 8-9" so about the size of my hand and larger than the Aro. i did my research to see if they are compatible and all i can find is information saying to make sure the oscar isnt big enough to not get eaten by the Aro. i could not find anything in regards to weather or not the oscar could be harmful to the Arowana, seeing that the oscar is larger than the Aro. I have heard splashing in the water when im not looking at the tank, but when i turn around the Aro is trying to jump out of the water and swim real fast as to try and get away from the Oscar. Is it a bad idea to leave the oscar in the tank? I like the Oscar but i value the Aro more and dont want him to get killed by the Oscar. any tips, recommendations or advice would be greatly appreciated -Thanks 
