20 bucks? I hate Chicago! In the cheapest store here, through my friend in it, I would have to pay 30. If I were to buy from any other store, I am looking at about $ 40-50. There is a place here where they over-charge everything at least by 100%. Once they tried to convince me that a hanging 150 watt MH for $500 was a good price. A naso tang (8 inches) $ 200. Reason for that, according to them is that they quarantine the fish for 2 months, yet they have only one day return policy on dead fish.