I have had my 3 rope fish for 4 and a half years now and in that time I have never seen the fight until today I was doing a water change and filter clean when I noticed a disturbance my biggest rope fish had lathed on one of the others tail it broke free and a fight broke out this lasted for about 3 minutes when they then came fae to face this is when I thought things could get serious but they both backed down. I have now noticed that they may have been fighting over a bog wood cave that the biggest one has occupied that cave.