You should be able to buy the tank with or without the overflows, but if I were you, I would strongly consider a sump system (for freshwater, saltwater, or brackish)strike2 wrote:Yep thats it, I wont need this for freshwater, will I?
You could probably build it yourself for less than the cost of a good cannister filter.
One of the things I really like about sumps is that you can relocate your heater(s) and protein skimmers (if it's a marine tank) so you have less unslightly things in/on your tank. If you want to invest the time and money you can have auto top-off and auto water changing also.