Thai ornamental betta breed reference

Standard Breeds of Ornamental Betta Fish in Thailand (Long Fin Single Tail)

A Long Fin Single Tail betta has fins longer than those of bettas normally found in nature. Its Caudal Fin is not less than two-thirds of its body length, and its form follows the characteristics of its type.

Type 3.1

Veil Tail

Body

The body is cylindrical and laterally compressed, complete in form, evenly long and slender, with fins of equal size on both sides.

Pectoral Fins

The fin rays are unbranched, long, slender, and straight, without bending or crossing, and have pointed tips.

Pelvic Fins

The fin rays are unbranched, long, slender, and straight, without bending or crossing, and have pointed tips.

Dorsal Fin

The fin is not notched. Its base begins around the middle of the body toward the Caudal Fin. Its form is taller than it is thick. When spread, it overlaps and touches the Caudal Fin. The fin rays are unbranched, which is a distinctive characteristic.

Anal Fin

The edge is smooth. The fin is long and slender, with a slight curve, without bending, and has a pointed tip. When spread, it forms the characteristic shape of the type. The fin rays are unbranched, which is a distinctive characteristic.

Caudal Fin

The Caudal Fin is not less than two-thirds of the body length and has a long, slender shape. Its rays branch equally into two, except that the uppermost first ray and lowermost last ray branch into no more than two rays (either one or two).

3.1.1 Brush Tail

The tip of the Caudal Fin is pointed.

3.1.2 Horse Tail

The tip of the Caudal Fin is rounded.

Note: A Horse Tail whose caudal-fin rays branch into more than two rays is not considered a principal Veil Tail type.

Long Fin Single Tail bettas with extended fins
Long Fin Single Tail overview
Brush Tail betta with a pointed caudal-fin tip
3.1.1 Brush Tail
Horse Tail betta with a rounded caudal-fin tip
3.1.2 Horse Tail

Type 3.2

Crowntail

Body

The body is cylindrical and laterally compressed, complete in form, evenly long and slender, with fins of equal size on both sides.

Pectoral Fins

The fins are straight, long, and slender, with pointed tips and no bending. Their edges are smooth or slightly serrated.

Pelvic Fins

The fins are straight, long, and slender, with pointed tips and no bending. Their edges are smooth or slightly serrated.

Dorsal Fin

The base begins around the middle of the body toward the tail. The fin is slightly taller than it is thick. When fully spread, its edge touches the first caudal-fin ray. The rays are serrated into spines, and the depth between the spine tips is not less than one-third of the Dorsal Fin length.

Anal Fin

The fin is serrated like spines. The depth between the spine tips is not less than one-third of the Anal Fin length.

Caudal Fin

The Caudal Fin is not less than two-thirds of the body length. It is serrated into crown-like spines, and the depth between the spine tips is not less than one-third of the Caudal Fin length.

3.2.1 Double Rays CT

The caudal-fin rays branch into two rays.

3.2.2 King CT

The tips of the caudal-fin rays branch into two rays and curve toward each other.

3.2.3 Double Double Rays CT

The caudal-fin rays branch into four rays.

Double Rays CT showing caudal-fin rays split into two
3.2.1 Double Rays CT
King CT with paired caudal-fin tips curving toward each other
3.2.2 King CT
Double Double Rays CT showing caudal-fin rays split into four
3.2.3 Double Double Rays CT

Type 3.3

Halfmoon

Body

The body is cylindrical and laterally compressed, complete in form, evenly long and slender, with fins of equal size on both sides.

Pectoral Fins

The fins are straight, long, and slender, with pointed tips and smooth edges.

Pelvic Fins

The base of the Dorsal Fin begins around the middle of the body toward the tail. Its shape is rounded. The first Dorsal Fin ray should not be shorter than the ray described in the source, and the Dorsal Fin is slightly higher than the tip of the Caudal Fin.

Anal Fin

The edge is smooth. The fin is long and slender, with a slight curve, and is not bent.

Caudal Fin

The Caudal Fin is not less than two-thirds of the body length and is shaped like a semicircle or half moon. Its rays branch into no fewer than four rays. The Caudal Fin spreads to not less than 180 degrees. When flaring, the outermost upper and lower edges form angles like the letter “D”.

Note: When the Caudal Fin spreads to less than 180 degrees, it is called a Super Delta.

Halfmoon betta with a broad semicircular caudal fin
3.3 Halfmoon

Type 3.4

Halfsun

Body

The body is cylindrical and laterally compressed, complete in form, evenly long and slender, with fins of equal size on both sides.

Pectoral Fins

The fins are straight, long, and slender, with pointed tips and no bending. Their edges are smooth or slightly serrated.

Pelvic Fins

The base of the Dorsal Fin begins around the middle of the body toward the tail. The fin is slightly taller than it is thick. When fully spread, it touches the first caudal-fin ray. The edge is serrated into spines, and the depth between the spine tips is not less than one-quarter of the Dorsal Fin length.

Anal Fin

The fin is serrated into spines. The depth between the spine tips is not less than one-quarter of the Anal Fin length.

Caudal Fin

The Caudal Fin is not less than two-thirds of the body length and has sun-ray-like serrated spines. The depth between the spine tips is not less than one-quarter of the Caudal Fin length. The Caudal Fin spreads to not less than 180 degrees. When flaring, the outermost upper and lower edges form angles like the letter “D”.

Halfsun betta with sun-ray-like serrations around the fins
3.4 Halfsun

Type 3.5

Dumbo Long Fin

A Dumbo Long Fin is a long-fin betta whose fin structure and body conform to its type, but whose Pectoral Fins, or ear fins, are exceptionally large—more than twice the normal size. This characteristic gives it the name “Dumbo Long Fin”.

Dumbo Long Fin betta with exceptionally enlarged pectoral fins
3.5 Dumbo Long Fin

Type 3.6

Giant Long Fin

A Giant Long Fin is a long-fin betta whose fin structure and body conform to its type, but whose size is larger than normal. Its body length, measured from the tip of the mouth to the base of the Caudal Fin, is more than 5 centimetres.

Giant Long Fin ornamental betta reference illustration
3.6 Giant Long Fin