They won't stop fighting if they are all the same size
If you get big size differences they will prob never fight
If you had say just 2 and one was 15 inch and the other 5 they will get along great
Once the 5 inch starts to catch up in size to say 12 inch the 15-16 inch one who used to show it no interest will turn on it
I have seen this many times before with my big ST as he has stopped growing at 24 inch he is fine with anything 10 inch but once they grow to 15-16 inch he hunts them down
Sent from my iPhone using
MonsterAquariaNetwork app