I've had to put it out it's misery(freezer method i watched to see if it was quick and effective, it was
). it was just falling to the gravel. it tried to make it's way to the top when I fed but it couldn't I went out and came back and he was suckered to the filter couldn't get away.
These are from the same batch that one died after a show down with a betta. his replacement died also but the remaining 2 seemed to do very well since till now.
I haven't a clue what's wrong waters fine etc.
I'm thinking a bad breeder. myself. I have had a plec 4 mollies and 15 rasbora's from the shop not a problem
gutted now I actualy really hate losing fish