I picked up 2 pairs of these Girardinus metallicus from Scales. Their also known by their common names Blackchin Livebearer or Cuban Livebearer.
I plan on putting them outside in my deck pond. Even though I haven't had them long,I have noticed all they do is spawn lol. These guys are the rabbits of the fish world I should have a surplus soon.
I saw these guys at Scales last time too, and was definitely tempted. But I had just bought some ember tetras, so figured I should probably try to control myself. Besides, I didn't have anywhere to put them. Maybe after I shuffle some things around a bit.