Why do poinois fish camouflage?

Poisonous fish use camouflage primarily as a survival strategy to evade predators. By blending in with their surroundings, these fish can avoid detection while remaining stationary or moving slowly. This adaptation not only helps them escape potential threats but also allows them to ambush prey more effectively. Additionally, their bright colors can serve as a warning to potential predators, signaling their toxicity when they are noticed.