What is the most venomous fish in the ocean?

The most venomous fish in the ocean is the stonefish, scientifically known as Synanceia. These fish are found in the coastal regions of the Indo-Pacific and are well known for their highly potent venom. The venom of a stonefish is delivered through spines that run along its back. If stepped on or attacked, the fish will instinctively arch its back, causing the spines to erect and release the venom.

Stonefish venom contains neurotoxins that can cause intense pain, paralysis, tissue death, and even death in humans if left untreated. Symptoms of envenomation can include swelling, numbness, vomiting, sweating, and difficulty breathing. Immediate medical attention is required to neutralize the venom and prevent long-term damage.