There are coupons for the Denver Downtown Aquarium on a number of websites. You can find coupons on coloradokids.com and yipit.com. Aquariumrestaurants.com also has a number of discounts and deals.
As of January 2015, Coloradokids.com lets you print a coupon for a $6 Kids Exhibit Pass when you buy an Adult Pass. But this coupon can’t be used with any other deals.
As of January 2015, yipit.com gives 53% off a ticket to the aquarium for an adult and a child.
Aquariumrestaurants.com details how to receive a 10% military discount for eligible personnel. With a restaurant receipt, you can also get a discount on an exhibit and free parking after 6 p.m.