thanks everyone,
One day came home from work I notice the smaller orino swimming at the bottom of the tank and never does that, later on that day started swimming all weird woke up the next morning and was laying on its side, I did a water change and added some aquarium salt, 2 days pass was still laying on its side and swimming a little, I thought it was going to make but on 3rd day started doing those death circles and I knew it was going to die and died later that day.
This was also the first fish I have lost in my 240 since setting it up last Aug