I got these fellas, two females two males in an aquabid package deal and they are the ones I like the least. They are active, hardy and pretty, they eat most everything, but they're a bit on the mean side and a bit bigger than I like my fish these days.
I'd like $20 for the 4 of them. You can pick up in 10462 or I can bring them to the Sept. meet up. As a bonus I'll happily provide some free pickings of what I can spare, various floaters, watersprite, guppy grass, java fern, bristlenose young, assassin snails, guppies or Heterandria formosa.
If you want to trade I'm interested in cherry shrimp, various substrates, 5 gal or 2.5 gal tanks and pill bugs.
Here's a halfway decent pick of two of them.