Do you think that they really die so fast? Cause the first time everything worked till they hatched.
I think it’s 7-8 days from the time the eggs are deposited on the rock to the night they hatch .
as soon as they hatch , and the dad isn’t looking over the eggs to fan them or pick out the dead eggs.
think of how much other clean up crew is in that same system in search of food .?
if you can get collect the eggs the night they hatch .
or collect them as they hatch to put in another setup .
I was going to do this years ago .
I had a par that would do their egg dance every 14 days religiously .
Sourcing the rotifers to feed them at the time proved difficult .
Even a good culture of phyto ( green water ) wasn’t that easy to find
I have a pair of cardinals . I’m going to try breeding them in my reef .
if this goes well , I might look into other breeding options .