The male usually helps with the hatching IME...I actually use this to predict the night of hatch--if the male goes to sleep, no hatch, but if he's fanning the eggs after the lights go out, then tonight's the night.
Most larvae IME don't hatch with much visible yolk left, at least ocellaris, percula, and maroons. Sometimes I still see orange yolk on clarkii, cinnamon, and tomato though...hope this helps!
Matt
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Weekends are overrated
Current Tank Info: 144g Bowfront Reef
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