What is Life expectancy of a Russian sturgeon?

WHAT ARE characteristics of shell fish? What organ do goldfish have to get energy? How much are fisher price little people worth? What are nitrifyers? Where do ice fish breed? Why is smoked salmon called lox? How long is a full size whale shark? Do sharks kill people often? Do sharks eat suit of armor? What is a narrow opening at the back of the mouth? How do you stop hawks from eating fish? Who was guy salmon? Where does shell get its oil? Is a 2 gallon bowl too small or too large for a goldfish? What are the enemies of the frilled shark? What defenses does the Plecostomus do to survive? Are fishes all the same in characteristics? How big do moray eels grow? How much total money would it cost to buy maintain a tank of three guppies? What is better- an all male fancy guppy tank or an all female fancy guppy tank- I do not want to breed?