Latest news:
The two big ones – which have been watching each other from their opposite territories for the last days – had a heavy quarrel this evening. They attacked each other by rapidly swimming frontally towards the other, ramming each other, circeling around each other – all of this really fast and very hard to follow with your eyes.
The two smaller ones – which still show no sign of a similar pattern in the unpaired fins, especially the caudal fin is cristal clear – watched them very interested from a safe distance.
Immediately after the fight the two bigger fish looked like this:
The first (former the biggest, the “mysterious” fish I have shown many times before):
And the second, which in the meantime shows the same pattern:
Watched from above by one of the smaller ones:
I still (and again) dare to hope to have two pairs …… I think the two bigger ones are still not fully mature, but are males – the two smaller ones being females.
What do you think?