I know I had my other Os for 1year and i sold them
They was too big and they were 9" ( Red Os, Tiger Os) and they were liplocking every day so i sold them and Got me a litte Os
The Old 55g that I had it before they are now saltwater tank and three more 55g I use 2 New 55g as of salter and the last one I was using for freshwater.
were All Os are death and Only one firemouth so I dont know any more
It seems like All my fish are dieing saltwater freshwater both