Tufted tube blenny
You can spot this little friend at the rocks where it will look out of the mollusk and worm tubes which they inhabit. You will nearly never see one of them outside so it’s hard to imagine that they actually have a quite elongate body with up to 8 cm. They just come out occasionally to nab floating particles of Zooplankton. Normally you can observe them extending their heads out of the tubes. On one rock you will probably see many of them even if they are solitary living fishs. Well, but who would like to share these little tubes? The reason why they are one of my little favorites is the tuft of densely packed hair like structures between their huge eyes.