Qustions About Free-swiming Zebra Danio Fry?

[fry_forever!]

Hello. Yesterday I found my first free-swimming zebra danio fry!
But I have a few questions... how many times a day do I feed him?
I have this liquid food that he eats readily.

Also, how many water changes should I do? Like, how often? I know it varies for different types of fry, because some are sensitive to water changes...
So, how often should I do a water change?

Thanks in advance for any help!

 

[fry_forever!]

Does anyone know? I don't want to do something wrong...?