Can 'crownmoon'

[BettasRFriends]

Here's something odd. My male betta used to have 'crownmoon' tail (delta/super delta tail with crowntail in him) but right now his tail looks more and more roselike each day but the crown is still there. What the heck is going on?

 

[Synirr]

Uh... was he really crowntail, or combtail? If you got him young his finnage may just now be filling out to its full potential.

 

[BettasRFriends]

Well here's what the caudal fin looks like:
http/www.fishforums.net/index.php?showto...30&hl=crownmoon (this is not my betta) but the rest of the fins look normal. That was before his caudal fin starts looking more like this: http/vanriel.myadsl.nl/SireBT220105B.jpg (this is not my betta)