I will be buying a tank soon with the hopes of keeping some cichlids in it. I would like to keep Con's, JD's, or a GT. I have been looking at two options for my first tank. My first option is a 33 gallon (36x13x18) hagen kit. This setup is pretty well complete, as in I wouldn't have to change any of the components. My second option is a 55 gallon (48x13x22) walmart kit. The cost of the kits are almost the same; however, I think I would swap out the filter and heater and the walmart tank. What tank should I buy?