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From The Aquarium Wiki

Acipenseridae, or Sturgeons, belong to the order Acipenseriformes and class Actinopterygii (ray-finned fishes). There are about 23 species within this family split into two sub-families, Acipenserinae and Scaphirhynchinae.

	Common name	Difficulty	Maximum Size	Minimum Tank Size
Acipenser brevirostrum	Shortnose Sturgeon	Challenging	57.08661417322857.087 in145 cm	500500 gal1,892.706 liters 1,892,705.89 mL
Acipenser medirostris	Green Sturgeon	Moderate	98.42519685039498.425 in250 cm	10001,000 gal3,785.412 liters 3,785,411.78 mL
Acipenser ruthenus	Sterlet	Challenging	59.05511811023659.055 in150 cm	350350 gal1,324.894 liters 1,324,894.123 mL
Acipenser sturio	Atlantic Sturgeon Baltic Sturgeon Common Sturgeon European Sturgeon Sea Sturgeon European Sea Sturgeon	Difficult	78.74015748031578.74 in200 cm	15001,500 gal5,678.118 liters 5,678,117.67 mL
Huso huso	Beluga Sturgeon Beluga European Sturgeon	Very Difficult	196.85039370079196.85 in500 cm	40004,000 gal15,141.647 liters 15,141,647.12 mL
Scaphirhynchus platorynchus	Shovelnose Sturgeon	Challenging	39.37007874015739.37 in100 cm	450450 gal1,703.435 liters 1,703,435.301 mL