I noticed today that Ken-chan has a white line going down the front of his fins that come down on the bottom before his actual fins. ( I look at them and think the feelers of a catfish or something) and I was wondering If that was a sign or maturity. ( The lines are identical on both feelers)
Keep in mind that the 13 months I have had him, not once has Ken-chan attempted to make a bubble nest.
Should I be worried in this or is my son just an eunich?
The other question is, How does one tell the age on a betta fish? Do they have to be a certain age before they can mate and how does one know besides the bubble nests?