Ah okay. I've had it for about 2 months now but never bothered to look up what it was until just recently as I'm planning to redo my tank. Just gave all of my platies to a friend and a few guppies as well and was trying to find good tank-mates for the new fish I have (neon tetra, black tetra, Otto and Tiger barbs).
I got 8 Blue Tetras about the same time I got this new guy from my brother and I did wonder why I only have 2 neons left, this explains a lot
Might be an idea to read one of my Killifish topics
http/www.fishforums.net/index.php?showtopic=280783
No small fish as tank mates for this species.
ATB
C