Common bully and Similar Species
Gobiomorphus cotidianus
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Open the appSeveral fish can be confused with Common bully. Here are the key differences.
Species often confused with {name}
Redfin bully (Gobiomorphus huttoni)
Gobiomorphus huttoni
Key differences: Redfin bullies typically have distinct red or orange coloration on their fins, especially the pectoral and caudal fins, and often have a more streamlined body. They also have a more pronounced dark spot at the base of the pectoral fin. Common bullies lack this prominent red/orange fin coloration.
Giant bully (Gobiomorphus gobioides)
Gobiomorphus gobioides
Key differences: Giant bullies are significantly larger, reaching up to 25 cm, and have a more robust, deeper body. They also tend to have a more pronounced 'hump' behind the head. Common bullies are much smaller, rarely exceeding 15 cm.
Bluegill bully (Gobiomorphus hubbsi)
Gobiomorphus hubbsi
Key differences: Bluegill bullies are generally smaller and have a more slender body. Males often display iridescent blue or green patches on their opercula (gill covers) during breeding, which is absent in Common bullies.
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