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Sterlet - small sturgeon found in the Caspian Sea and its rivers. Its meat is considered delicious, and its eggs are one of the world's great delicacies, caviar. Sterlets are true sturgeons, a primitive group of fishes characterized by their cartilaginous skeletons and rows of heavy plates along the flanks and dorsal surface. Sterlets are most unusual to see in the aquarium and attract a great deal of interest. The snout is long and the mouth is located on its underside. The fish has a tail like that of a shark, where the backbone continues into the top lobe, which is longer than the bottom lobe. To locate food, the Sterlet uses its four barbels, located right in front of the mouth. Because of how sensitive these barbels are, soft and sandy gravel is a must. Favorite foods include insect larvae, tubifex worms and snails. This fish is a gentle giant and will generally leave other tankmates alone. However, it should not be trusted with small, bite-sized fish.
