"I have several "pair" of Angelfish. They are from my 'first' batch. The original two had no problems. Now, everytime ANY pair lays eggs, they turn white within 24 hours? I have tried using Methelene blue, I have tried setting up a special breeding tank and isolating the pair just before she lays her eggs. I have watch "papa" swim over the eggs, so I assume he is doing his thing. Every time, they turn white?? Any suggestion besides getting a sperm sample from papa?"