Here is a detailed introduction to the main types of male betta fish (organized by classification system):
I. Betta splendens (Thai Betta) Varieties
Halfmoon Betta (HM)
The caudal fin spreads to 180 degrees in a half-moon shape, including subtypes like the Over Halfmoon (OHM).
The dorsal and anal fins are broad and D-shaped, with body colors featuring metallic lusters.
Crowntail Betta (CT)
The caudal fin is needle-like and radiates like a lion's mane, classified into types such as two-needle/Y-needle based on the needle structure.
Originating from Indonesia, the fin membranes have degenerated to form unique coronet-like spikes.
Plakat Betta (PK)
Short-tailed with thick fins, retaining wild characteristics, and the pelvic fins are pointed and long.
Highly valued for combat strength, often used in competitive battles.
Veiltail Betta (VT)
The caudal fin droops like a horse's tail, the most common basic variety.
Fins are soft with distinct color gradients.
Elephant Ear Betta
Pectoral fins are broad like elephant ears, contrasting with the body color.
Includes variants such as the Elephant Ear Halfmoon.
II. Macropodus (Chinese Betta)
Red and Blue Forktail Betta
Caudal fin is forked, with alternating red and blue stripes on the body sides.
Commonly known as "Common Forktail," a representative species of Chinese bettas.
Roundtail Betta
Caudal fin is round, with a prominent blue spot on the operculum (gill cover).
Cold-tolerant, able to inhabit the Songhua River basin.
Forktail Betta
Caudal fin is round-forked, with red-rimmed irises and golden rings.
Distributed in the water systems of Fujian and Guangdong, highly territorial.
III. Other Special Betta Varieties
Wild-Type Bettas
Peaceful Betta (B. imbellis): Requires 27°C water, timid and light-averse.
Emerald Betta (B. smaragdina): Body color is blue-green like jade.
Special Varieties
Red War Dog Betta: Mid-water breeder, incubates eggs in the mouth.
Flame Panda Betta: Fiery red body with white-edged fins.
Betta coccina: Wild red variety with relatively mild temperament.
Note: Scientific names are provided for taxonomic clarity, and terms like "coronet-like spikes" maintain anatomical accuracy for specialized features.