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A type of soft coral that filters plankton from the water and provides habitat for many small marine organisms.

A small crustacean that removes parasites and dead skin from fish, contributing to the health of reef fish populations.

A type of branching coral that serves as an important habitat for reef fish and invertebrates.

A massive coral known for its grooved surface resembling a brain, which contributes to the structural complexity of the reef.

A coral-eating starfish that can cause significant damage to reef structures if populations are left unchecked.

A coral-like organism that can cause painful stings, it is actually more closely related to jellyfish and anemones.

A small, brightly colored fish known for its mutualistic relationship with sea anemones.

A phenomenon where coral polyps expel their zooxanthellae due to stress, causing the coral to turn white and making it more vulnerable to disease and death.

Trees that grow in coastal saline water, providing important nursery habitats for many fish species and helping to protect shorelines from erosion.

A colorful fish species that plays a key role in bioerosion and helps to prevent algal overgrowth on corals.

A reef fish species important for algae control and known for its bright blue coloration.

Small, anemone-like organisms that make up corals and secrete calcium carbonate to form the reef structure.

A large crustacean found in coral reef ecosystems that lacks large pinching claws but is important as both a predator and prey species.

Symbiotic algae living within coral tissues that provide essential nutrients to the corals through photosynthesis.