Separating dead eggs

In spite of the cause of death, dead eggs should be removed to prevent disease outbreaks. Live eggs are transparent and develop from a pale yellow to an orange–red color as they mature. Dead eggs are often tricky to identify during the first day or two after spawning. But by the third day, dead eggs characteristically appear opaque and colorless. Some dead eggs also may be enlarged. When dead eggs are observed, they can be removed by hand, being careful not to damage nearby live eggs. Egg masses older than 24 hours should be turned over occasionally in the hatching basket and inspected for fungus and bacteria. This should be done at least twice daily, but no more than four times daily, until hatching begins.