I just returned home and i am really pissed as i found one of my L65 dead.
As it seemed to be bloated i 'opened' it to see why...and this is what i've discovered...
Note that that fish was only 12cm TL in size!!!!
I don't know why that happened as there is nothing wrong with the fish (judging from general appearance) and nothing wrong with the rest of them.....

...tomorrow it was planned to be moved in their permanent tank...(now they are in grow out)