I just started learning about betta genetics, so I probably have most of this wrong. PLEASE inform me if you have contrary information, or any additional info. Thanks.

Here are some pictures of the different tail types.

Body Types
ST	single tail
dt	double tail
P	veil tail
hm	half moon
	delta
	fan tail
p	comb tail
	crown tail

color

Iridescent layer: blue/green = Bl and bl (incomplete dominance)
Bl Bl = green
Bl bl = royal blue
bl bl = steel blue
Si = spread iridocytes, metalic sheen over whole body. (dominant)
non blue = nb? does this exist?

Red layer
NR = red (dominant to non red)
nr = non red (recessive to red)
nr2 = orange (recessive) Er or R = extended red, red over whole body (dominant)
L = reduced red = red loss (dominant)
Vf = varigated fins, butterfly (dominant)

Yellow layer
nb + nr + m = yellow coloring. Is there a gene for yellow specifically?

Black layer
m = Melano, increased black pigmentation (recessive)
c = non black, Cambodian (recessive)
b = Blonde or Bright (recessive) strong colors (ex. red compared to maroon)

other
Op = Opaque mixes with all colors. (incomplete dominance)
Albino = genetic defect. recessive, no pigment, red eyes.
w = white eye (recessive)
mb = marbled (recessive)
C = solid colored fish, vs. c = cambodian?

My Bettas

Basic Betta Info.

Other Fish.

Questions, Comments?