interesting topic here. not much of a freshwater person. But browsing here interest me more in the freshwater hobby. i look forward into my SW hobby into breeding. very awarding and much looked upon in any aquarium hobbyist. I have had some females do the same to me in my 125 SW tank. Must be a thing wit females lol. But i have learned that wit cardinal fish when they breed the male actually tumbles the eggs within his mouth. Having the problem with the females eating there young maybe all male fish should do that lol