My female ate all wrigglers.. How can save others???

[iwishuwould]

Last week,  I saw both the male and female brought the wrigglers out of the cave, and brought them back and forth. One day, I saw the female fought with the male, and did not let the male come close to the cave anymore. I was afraid the male would get stressed out (one of my post was regarding my male's fin and tail got torn..) I separated the male out. For 3 days, I have not seen any wrigglers at all. The female still comes in and out the cave and sometimes stand still looking outside. I changed the water last night and I saw NO BABIES left in the cave. What did I do wrong? Please help me because right now I currently have another pair with eggs, and some wrigglers inside the pot. How can I save all of the fry??? Thanks all.

[Stormbringer]

you may not have done anything wrong mate , the parents sometimes just eat the wrigglers and it can take a few goes for them to get it right