A well grown male can have a body size of close to 3 inches.
Betta fish grow to be an average of 2 inches from head to the beginning of the tail.
bettas dont u sally grow more then 3 or 4 inches.
No.
you don't
Yes a betta fish will grow back lost scales with time and clean water.
No
Betta fish grow paler and less active when they are sick or old.
it depends on how small the bowl is betta fish usually dont grow larger then 3 or 4 inches
a long time
The average is 1.5 inches
6inch
A Betta Fish or Siamese Fighting Fish are only a few inches. The females grow to about 2.5" and males grow to 3".