Petco is a convenient go-to store for aquarium needs and pet adoption. The staff, including managers and cashiers, are frequently described as incredible, knowledgeable, helpful, and pleasant with a great attitude. They are noted for being sympathetic and making exceptions for customers. Employees are highlighted as honest, passionate about animals, and willing to provide discounts. While not every customer's favorite fish place, it is valued for its knowledgeable fish people. Customers report positive experiences with returns and adoptions, leading them to become repeated customers.