PetSmart currently has 10 fish for $10 (with the PetPerks card). They have a bunch of fish in the deal: Jumbo Neon Tetra, Medium Red Micky Mouse Platy, Medium Sunburst Mickey Mouse Platy, Female Fancy Guppy, Medium Chinese Algae Eater, Large Longfin Zebra Danlo, Large Cherry Barb, Medium Sunburst Wag Platy, Small Fantail Goldfish.
Offer good until June 25, 2006