Crowntails

According to Aquatic Community, the crowntail betta was created in 1997 in Indonesia. The term "crowntail" comes from the webbing being shortened between each ray of the tail, giving the tail a spiked appearance. Even the females have a spiky tail, though theirs can sometimes be less pronounced.

Crowntails are one of the more popular fin types in bettas, despite only having been around for about 21 years. They were first introduced to the International Betta Congress (IBC) by Achmad Yusuf, an Indonesian breeder.

Aside from their popularity and some generic care tips, I'll admit that that's about all I can find on these pretty fellas. They come in many colors; Pineapple the Fish is yellow, my mother's fish Phineas was blue and black, and Alisha, my new female, is pink and blue. Here are some pretty pictures:

Alisha, though not the greatest picture.

Phineas, flaring enthusiastically. 

Ryder, one of our former bettas of the week, is a stunning crowntail.
Credit: @kanansai on IG