Raising Killifish eggs?

Question by ABear✿: Raising Killifish eggs?
I tried researching information, but I didnt find what I needed too,

1) How long do they stay in their eggs(when will they hatch?)

2) How many gallons do they have to be in?

3)Tempature

4) Food

Thanks so much!
Im sorry, I forgot to mention that.
“Rachovii Beira 98”
Oh, and also, if you get 30 eggs, will all of the eggs survove, or just a majority? Thank you.
Oh, and also, if you get 30 eggs, will all of the eggs survove, or just a majority? Thank you.

Can you help? Leave your own answer in the comments!