12 Gallon for 179 and 24 Gallon for 199, 20 more for double the amount of gallons, should be a no brainer, you might want to double check these prices as that is really cheap if they come with the stands also. I bought a 29 Biocube and have been extremely happy with it, but it was 295 for just the tank, the stand was another 110. I am not familiar with the brand you are thinking about, but the price sounds very good.