Garden eels are one of the reef’s most enchanting and subtle sights—small, slender fish that live with their tails anchored in burrows on sandy slopes, swaying gently in the current as they feed on drifting plankton. They are found across tropical and subtropical oceans, especially in the Indo-Pacific and Red Sea. These fish are best known for forming dense colonies, often appearing like fields of grass when viewed from a distance. As divers or snorkelers approach, the eels retract into their burrows with lightning speed, only re-emerging once the perceived threat has passed. This behavior makes them a rewarding find for calm, slow-moving observers who know where to look.