Siamese Fighting Fish and Similar Species
Betta splendens
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: B. imbellis is generally smaller (up to 5 cm TL), has shorter fins, and is less aggressive than B. splendens. Its coloration is typically darker, often with iridescent blue or green scales, and it lacks the extreme fin development of ornamental B. splendens.
Mahachai Betta
Betta mahachaiensis
Key differences: Found in brackish water habitats, B. mahachaiensis has a distinct iridescent green-blue coloration, often with black markings. Its fins are typically shorter than ornamental B. splendens, and it has a more elongated body shape.
Smargadina Betta
Betta smaragdina
Key differences: Similar in size to wild B. splendens, B. smaragdina typically exhibits iridescent green or blue scales, often with red or black fin edges. Its fins are shorter and more rounded than ornamental B. splendens, and its body is more slender.
Explore Siamese Fighting Fish
Identify fish anywhere
Free on iOS, Android, and Web. Photo identification, full species details, and more.