HI guys. I'm going to be getting a bigger tank for my 2 oranda goldfish in may and was wondering what size to get. My local Petsmart has a 36gallon bowfront that comes with filter, heater, hood, and lights for $150. They don't have any 40 gallon breeders, but Petco has a 40gallon, but it comes with nothing. Which would be better? If the 40 gallon is better do they make hoods for them?