It appears that the popularity of buying annual passes to the aquarium was greater than anticipated. Here is a statement from the Georgia Aquarium website

We are honored by those who have joined us in membership of our annual pass program. Due to the overwhelming success of the program and in order to best serve our members, the last day to purchase annual passes for 2006 is January 15th at 6pm.

As they say in the fish world, “Don’t let this one get away.”