Purchased theese two Nandopsis tetracanthus along with two Acarichthys hecklii from Jeff Rapps about a month ago. Both sets paired up right away. The female hecklii is on the other side or the divider on the mend, male was getting a bit to carried away. The Cubans get along famously though and friday I had fertile eggs and now wigglers.
http://www.youtube.com/watch?v=CN1q-Oc-tCs
http://www.youtube.com/watch?v=CN1q-Oc-tCs