Petsmart is having a dollar per gallon aquarium sale, up to 40 breeder size. I read that some stores have 55 gallons for $55, YMMV.If you order online for pickup, you get another 10% off...so a 40b for $36!Petco may price match...Note: 40 breeder is an excellent size for an aquarium, not as narrow front to back as a 55. It's 16 inches front to back as opposed to only 12 for a 55 - makes a big difference, trust me! They also measure 3 ft across - a 55 is 4 ft across - something to consider.