they need a lot of room at minimum 3x their boddy
i just bought myself a short nose sturgeon and i know theyre not warm water fish but i keep him with my peacock bass! my water temperature is at 82! but ive heard that if you keep them a temperature of 74 they can survive! so far my sturgeon seems to be doing fine no dying signs lol! hope this help alittle bit!
My sturgeon has grown "maybe" 1/4 inch in 6 months.
He is not a " bottom feeder"
He will eat from the water surface, tubifex worms stuck to the side of the tank, or anything on the bottom.
He swims constantly and uses every inch of the 150g tank.
I think he is the slowest growing fish in my tank.