Recently I have been trying to breed a longfin Zebra Danio(her fins are still fairly short though) with a regular Zebra Danio, and for some reason they just won't lay eggs? I have been separating them for a few days at a time followed by a breeder box, and the female will be all over the male but no eggs? I already bred this male with another danio so I think he is viable, and danios are supposed to be very easy to breed.
Are the two not compatible?
Are the two not compatible?