A large school of grunts (Blue-striped, Caesar, and French grunts) are approached by a Foureye

A large school of grunts (Blue-striped, Caesar, and French grunts) are approached by a Foureye

A large school of grunts (Blue-striped, Caesar, and French grunts) are approached by a Foureye butterflyfish (Chaetodon capistratus). The smaller fish approaches the grunts in the hopes of getting a free meal by cleaning them of bits of debris and parasites.,Close-up of cleaning behavior.

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