Also known as Anemone Goby, Gudgeon, Reef Goby.
Found hiding in the arms of snake-locks anemone Anemone viridis over gravel, mud, sand and seagrass beds in rock-pools and around shallow areas of inshore reefs.
They feed on algae, crustaceans and invertebrates.
Length - 10cm
Depth - 1-8m
Widespread Eastern Atlantic, Mediterranean
They have a symbiotic relationship with Snakelocks Anemone - Anemonia viridis
Reef Gobies have the largest and smallest species usually with very distinctive colouring. Ref: https://www.fishbase.se/summary/46334