This place is amazing! The staff is incredible. Extremely knowledgeable and passionate about what they do. They take such good care of the fish and life that live in their stores until finding their forever homes. As newbies starting our own aquarium we naively started at PETCO. After putting my daughter through an extremely traumatizing start to fish ownership, this group of amazing people picked up the pieces and got us back on track. We ultimately had to move and they went above and beyond ensuring our fish were going to be well taken care off. If my words don't say enough I hope my actions do. We live in Arvada and were happy to make the drive to Centennial (through rush hour traffic on I-25) just so we could work with them specifically. So in short, strongly, strongly recommend!