R.I.P, death of a red & black Ancistrus male, rivalty with L134 leads to death

I'm saddened to write this but I do not want to write about only the positive sides and successes of fishkeeping.

My alpha male, calico red & black Bristlenose pleco was killed yesterday. The photo was taken when the fish was young but in it's adult form it was a very impressive fish.

This fish was approximately 4 years old, in it's prime and should have had many more years, it has supplied me with a constant stream of quality fry.

I foolishly decided to house the fish temporarily with my Peckoltia  compta / L134 group to give it a break from breeding. I knew there could be trouble between the males but did not expect it to lead to it's death. There were more than six empty caves in the tank but this was not enough. The carcass bore clear signs of fighting with another pleco, my suspicion points to the L134 alpha male.

This is something that could easily have been avoided and a decision I will regret. So a warning to anyone wanting to move several boisterous male loricariids into the same tank, monitor them carefully and obviously provide plenty of space and caves!