No really a good deal with the service fee, it runs up to 14 + 5.50 = $19.50
for adult and you are limited to 3pm-6pm on weekday. Here are other options:
1. Smart & Final is selling discounted tickets for $21.95 adult without
limitation till 2/9/16. Valid through 6/30/16.
2. AAA are selling tickets at 25% off at their branches, which is ~
$22.5. Again no limitation mentioned.
Source: http://www.aquariumofpacific.org/visit/discounts
