Siamese Fighting Fish and Similar Species
Betta sp.
Got a photo? Identify fish instantly with the Fishby app.
Open the appSeveral fish can be confused with Siamese Fighting Fish. Here are the key differences.
Species often confused with {name}
Peaceful Betta
Betta imbellis
Key differences: Smaller size (up to 5 cm), generally less aggressive, and typically has iridescent blue-green scales with red fins. Fins are shorter and less elaborate than most B. splendens varieties. Often found in similar habitats but prefers slightly clearer water.
Mahachai Betta
Betta mahachaiensis
Key differences: Distinctive iridescent green-blue scales with black markings, often with red or blue fins. Found exclusively in brackish water habitats (coconut plantations) near Samut Sakhon, Thailand. Fins are typically shorter than B. splendens.
Smargadina Betta
Betta smaragdina
Key differences: Characterized by iridescent green or blue scales, often with a metallic sheen. Fins are typically shorter and more rounded than B. splendens, though still colorful. Native to northeastern Thailand and Laos.
Explore Siamese Fighting Fish
Identify fish anywhere
Free on iOS, Android, and Web. Photo identification, full species details, and more.