[helene schoubye]

Yes, theres a difference to the crowded tanks you see in shops, here I think its simply because all natural reactions is really put out of working, – so the hierakies does not make sense. But once in a tank with better conditions, the fish changes behaviour. But with the chocolates, its different, – as I also found it with Betta albimarginata, having one pair is no good, but a small flock works.
If you want at some point to set up a chocolate tank and need some really good advice, you could start another thread and I might be able to get Kirsten, from Denmark, – who also used to have parosphromenus, to look in, – she has some interesting experience with the seleantis, – also spawning as well.