Tentacled blenny deposit their eggs, the males fertilizes the eggs and guards them until they hatch. Tentacled blenny The tentacled blenny ("Parablennius tentacularis") is a species of combtooth blenny most commonly found in all parts of the Mediterranean Sea (except the eastern part), in the Sea of Marmara and the Black Sea, and the east Atlantic near the coast of Portugal, Spain, Canary Islands, and Morocco south to Guinea. This species reaches a length of TL. Found in brackish waters, in estuaries or deltas, this demersal fish can be found in the sand at the bottom of the water in light vegetation.
Sand goby rounded. In males, there is a conspicuous dark spot on the anterior dorsal fin and in both sexes there is a black patch on the caudal peduncle. The general colour is sandy brown with indistinct dark blotches and reticulations on the dorsal surface and dark striations on the pale fins. The colour of the male darkens during the breeding season and his fins become more coloured. The average size is about . The sand goby normally lives at greater depths than the common goby. It feeds on small invertebrates living on the seabed especially amphipods. It is well camouflaged and