hey all my aro is not looking good recently put a 5 inch salvnini out of its misery it had de4veloped hole in the head but didnt realy go down hill till it ate my vimpire tetra.........it developed pop eye very nasty ..............but my aro seems to stay in one spot and looks like its having a hard time keeping the back end of its body at water surface pls any reccomendations..........!!!!!!!!!!!!!!! thx