I Have gotten Black arowana and I have 1 Marble Motoro 1 Hystrix ray 1 spotted gar 2 long nose gar and 2 hujeta gar 1 Juruense catfish like tiger catfish 2 Carapo Knife fish 1 fei feng is there anything here that would pose a threat to The Black Arowana safety or vice versa Im new at keeping Arowana so just want to make sure Im not doing anything wrong here Thanks