goldfish do
the lack of light being in the dark
Yes!
It will eventually turn white.
no.
Very dark, all the time, but truthfully it isn't healthy for the goldfish to be subjected to such conditions and it is just plain cruel to force a goldfish to stay in a dark room all the time.
no
no
It will turn white, or at least will start having some loss of color.
The short answer to this question is 'probably not white, though the color will become much paler'.
it doesnt go by colors.
Goldfish are not particularly attracted to any one colour.