Just some basic info here, I had a pair of these for well over a year. A local store owner called me one day and said he had found them and I could have them for $85 for the pair. I didn't ask any questions
I kept them in a 180 gallon
RK2 bin with 100+ lbs LR and had about a dozen SW
acclimated mollies in there as dither fish. The male was dominant and larger than the female. He would occasionally kill a molly, apparently just for fun
I rarely saw the fish, just an occasional flash of red or yellow streaking between the rocks, usually at feeding time. I'm sure they were spawning in there but I could not possiby locate the nest within all that rock.
After about a year the male began to morph to female, I don't know that any environmental cues would trigger that in an established breeding pair so I surmised it was just age, maybe that is the natural progression no matter what.
Soon there was only one fish, a large female. I have no idea if it was the original female or the changed male but due to it's size I guessed the latter. I think
the male morphed and then killed the existing female. A few months later it was gone. As both were large and mature when I got them I could only assume it was just age that caused the second fish to die.