It should be ok!!!
my two oscars got the beaten of all beatens two months ago by an evil vieja it was serious,fins right down to the core,major wounds all over body and one of them there lip was ripped right off!!!looked awful and one which was worse was on the floor perminant and we all thought she was going to die,,,,but a picture of perfect health you wouldnt even know<except lips a bit dodgy but even thats nearly all grown back....
all that i did was water changes every day 100litres a day!!!!!
worked a treat