Bettas are beautiful but did you know they're happier in a small aquarium (they make 2.5 gallon ones!) with a heater...in that environment they're active and happy, not slumped and sad like in tiny containers.
Rosetail Betta: Rosetail and Feathertail is an extreme Halfmoon with excessive branching of the rays giving the tail a "ruffled" edge. It has so much finnage that it overlaps like a rose. These fish are hard to breed on as the excessive mutations that cause the branching can lead to other mutations such as poor scales and short ventral fins. Can be seen in longfin and shortfin. http://betta-plakat.blogspot.com/2011_06_01_archive.html