Free/Money Making Aquariums

Petsmart issued a manufacturer coupon for $25/1 Marineland Aquarium. This coupon expires 12/31/2013  This coupon is still scanning today 1/1/14 and scans as an expiration of 1/31/14!!

Petsmart has the tanks as low as $10.99 with your Petperks card, so that's $14 you can apply to other items in your cart such as decorations or food.
Petco has some Marineland tanks as part of their $1 a gallon promo. So a variable Mm with overage to apply to your cart as well.
Meijer has them starting at $19.99, so free with this manufacturer coupon. Meijer doesn't pay overage, it autodeducts down to the item price. pookiedeal!
Aquarium Adventure had them as low as $15.99, so a $9 mm with overage to apply to other items ymmv not all cashiers there allow overage.