The Knysna Seahorse lives in the estuaries of the Knysna and Swartvlei rivers in South Africa, where level of salinity varies. Moreover, its green or brown color helps it blend into the eelgrass beds.
The Knysna Seahorse is endangered due to a restricted habitat spread over three locations. Declines in habitat quality and mature individuals also suggest it's at risk. To ensure sustainability, habitat protection, water management plans, and further tracking are paramount for this species' survival.