Thanks! I have read somewhere, that you can tell sexes by the shape below their mouth. I couldn't tell the difference. Was trying to figure out ASAP because they are in a community tank, and the fry absolutely would not survive(if they made it that far). So trying to make plans, if I needed to. But will wait and see!You will only know when you directly see one lay an egg that it is a female. And just because the two are buddies doesn't mean that the other one is male. Two females have been known to go through the motions together.
The difference between the sexes in anglefish is usually kept internal and it is possible to look up their vent and tell. But that can be stressful on the fish, and takes knowledge I don't have to know what to look for.
Just keep an eye on them for possible aggression and see what you can learn by observation.
Well the eggs didn't last long, a few hours after I posted this, looked back and they were all gone. Maybe from first batch of layed eggs? We've had the parents since they were nickle sized.Depends on the quality of the parents, if they have their behaviors intact you will get free swimmers because the parents take care of any threats. If they were breed with no consideration for keeping behaviors intact in the line you are right they won't survive. But then neither would any of their offspring survive in the wild if that were the case.
Breeding quality Angelfish with good fecundity, not over aggressive, and proper parenting skills is work. If you can though it is rewarding and less stressful because the parents do their job and do it well.