WOW there is a new high value $2/1 Tetra Food or Water Care printable coupon available. You can use it at Walmart and grab free fish flakes!
Tetra Goldfish Flakes – $1.23 (Reg Price)
Use $2/1 Tetra Food or Water Care printable coupon
FREE + overage after coupon
With this high value coupon you should be able to get free or almost free food at almost any pet store, although pricing will vary.