I have a pair of panamense, male is about 4", female 3". They can be very aggressive towards each other and other fish. Mine have spawned a number of times, but the male always ends up eating the fry, chasing off the female etc. I am shortly going to be offloading this pair to a friend. Lovely looking fish when they get bigger.
One another note I recently aquired 6 small panamense about an inch in length, lost the lot to bloat. Yours at 2" are about the same size I aquired my original batch at and had no problems at all. Just one of those things.