So I've been looking into adding like the "bubble wall" to my tank. I was just wondering if you were just using an air pump for a bubbler do you really need the air pump to match the # of gallons of your tank? Like my tank is a 29 gallon, but do I need the air pump for a 29 gallon tank? Or could I use one made for less gallons? Thanks. Here is the one I'm looking at.
http://www.petsmart.com/product/index.jsp?productId=2753029
http://www.petsmart.com/product/index.jsp?productId=2753029