have u tried to time it with a cold front or drop in the barometric pressure, also are u doing a good variety of foods like shrimp, bloodworms, spirulina, earthworms? ive always had great success when changing foods and temps although he could just not be interested in her have you tried a diff male competition can be good at times..I have been doing that, several times now, it was like clock work with the pair that I used to have, it's like the male isn't interested or something.....
Thars why I picked up the last 4 females at About Fish, got them for $30.I am going to pick up another male I think.... Sorry to jack the thread, I called aqua imports and they have a pair of cacs for 5O...a little steep