Tim was very helpful and understand and answered my questions. However I saw a lot of dead fish in their tank. The fact that there was dead fish left in the tank didn't bother me as it's normal and nature for fish to sometimes scavenge. But it makes me wonder why do many are dying. If Petco isn't equipped to maintain that amount of fish, whether it be because of the tanks' capacity or not enough employees to take care of it... Then maybe Petco shouldn't have that many fish in stock. Just a thought.