Residents and visitors are reminded not to handle the pufferfish. Those walking their dogs should ensure that their pets do not come in contact with the fish either as it carries the neurotoxin tetrodotoxin and should not be consumed. It was unclear what caused the fish to wash ashore, the statement read. The City said it will be monitoring beaches from Fish Hoek to Simon's Town in the coming days. Any further pufferfish will be removed.