This is highly dependant on the species.
usually when its first born 4-6 inches
3-5 weeks or until they are big enough
baby fish
no!
some times the big fish eat the little fish
A baby clown fish is called a big fat stupid.i'll tell you this answer is useless because i am ansering it for timepass.hahaha
In my own experiance,seperate the baby fish and the big fish = www.aquariumpros.com/faqpro/breeding_1.shtml =
When it is too big for its mum and the other fish to eat.
A devilfish octopus eats crabs and other things.
When a baby lion is born it is about the size of a small adult cat
45lbs.
Not that big. Just looks chucky :))