Aiptasia diaphana, commonly known as the yellow aiptasia or glasrose, is a species of sea anemone native to shallow waters in the temperate eastern Atlantic Ocean and the Mediterranean Sea.

It is found on hard surfaces at depths down to about 10 m (33 ft) and favours areas with poor water quality such as harbours and lagoons.

[2] Aiptasia diaphana catches passing invertebrates, marine larvae and small fish with its tentacles, immobilising the prey with its cnidocytes (stinging cells).

These photosynthetic algae manufacture carbohydrates in sunlight and these nutrients are available to the sea anemone.

[2] Aiptasia diaphana reproduces by both sexual and asexual reproduction and does so under different conditions.