Weedy seadragons have very specific habitat requirements; the water must be 12-23°C and 8-50 m. deep, though most are found 8-12 meters deep.
The weedy seadragons’ depth distribution ranges from shallow bays down to reefs at depths of up to 50 meters (164 feet). Most weedy seadragons are found below the low tide line.
Although weedy seadragons have a broad range of habitat, they have very specific requirements. The water must be between 12 and 23 degrees Celsius (53-73 degrees Fahrenheit), and 8-50 meters deep (26-164 feet), although they most often are found between 8 and 12 meters deep (26-39 feet).