I work at Petsmart and most of the employees are just plain dumb. I'm really disappointed. They just seem to lazy to even care. I had an employee say moss balls would help any tank problem just to sell it. I rip that employee a new a$$. This is my rant and rave lol. Don't get me wrong some do know what they are talking about. That and being on their phone texting. Here's a tip use that phone and do some research. Grrr