This is a pretty good PetCo. They have fairly complete coverage of all your pet-types, including a large live aquarium section, birds, small mammals, etc... They also have a grooming service. We've saved money by joining their pet club (over time).
Only drawback is almost no vet service at this petco (aside from I think a travelling vet that can do minor things like an injected tag).
PROS: Large, good coverage of all types of pets, grooming service
CONS: No vet on staff
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