Aurora is a determinate variety so it has a limited lifespan unlike indeterminates. But the lifespan of any variety all depends on the growing conditions provided and hydroponics has its own set of lifespan limitations that it imposes on any plant that are quite different from in ground growing. So while we could safely estimate a lifespan of 75-80 days if grown in ground under standard conditions, the folks over on the Hydroponics forum here would be of more help with the effects hydro would have on that lifespan.

Dave

http://forums.gardenweb.com/forums/hydro

Thank you very much! Great information.