Originally Posted by nemolover
I am new to Bettas and do not know what is a good form ( what does 2-ray mean? Haha) but she is quite a beautiful color!
"good form" is viewed from IBC standards (for show)
take a look at bettysplenden.com - about betta - last page (31)
Betta fins have tiny bone like structures (ray). When talking about rays, often what is meant is the last branching at the end of the fin. Betta's caudal often starts with 11 base rays (from the body). Each of these branches into 2 (first branch), which branch again into 2 each (second branch). HM may branch even further. So a 2 rays are fins with rays that only branch once - from one ray at the base becomes only 2 rays at the end. A 4 ray betta has 4 rays at the end (from 1 base ray) ...... and so on