zero,
Hey their bud.... nice catch.... just let him be.... if your going to try to put food in his tank observe it and dont just leave the food coz if ever your aro dosnt eat it, it will just foul the water.... 10-15% WC every two days so that his injuries will heal quickly.... also 1tbspn of rock salt every 10gal. try SW... aro also loves SW or MP.... as long as he is swimming properly, its a good sign that his getting well.... dont be bothered if his not eating well right now... its just probably getting used to its new tank... give it atleast a week.... after that it will feed regularly....
happy fish keeping.... and gud luck on your aro...