You could probably make it work but would have to run it close to solo for sometime it would be stock and having to pay too many emploees that could kill a guy as this would mean you would have to have to high of prices to attract some people ie the majority of new comers. It might not hurt to look into opening a store of some other well respected franchise. Also you need to stock enough of the cheaper fish because people are never afraid to lose them but are afraid to spend big bucks on a fish that feels like they just lost their life savings a friend of ours was talking to the owner of a fish shop in our area and he said thir best money was in the lower priced fish. I agree that a good selection of tanks and equiptment is escential but lends to the large overhead that kills alot of new businesses be fair priced but remember it is almost impossible to match prices with places in the walmart league I hope you can make your dream work for you a job you enjoy is always better than one you don't.