Bloodworm (Midge Larvae)

Found in both freshwater and marine environments, often in the bottom sediment of lakes, ponds, and slow-moving streams.

They primarily feed on organic detritus, algae, and microorganisms in the sediment.

They live in silken tubes in the substrate. Their red color comes from hemoglobin, which allows them to survive in low-oxygen environments. They eventually pupate and emerge as non-biting midges.

They are a vital food source for fish and waterfowl. While they do not bite humans, handling them can occasionally cause allergic reactions or skin irritation in sensitive individuals. They are also indicators of water quality.