Well I dont own a LFS....yet(in the process of expanding and buying one) I do own a company that specializes in custom tanks and setups as well as a small product line. After I got out of the military I did work at a LFS for a little while before I started my own company and it was a tough market. If you dont know what your doing and have a solid plan you will fail....it is also expensive. I will say this Envysion(my company) specializes mainly in saltwater and have only done a few fresh tanks. Why? because there is absolutely NO money in fresh water. We provide livestock and maintenance services to the tanks we do and I can say with 100% certainty that we sell more money in livestock each month to our limited audience than the LFS that specializes in freshwater and they have 150+ tanks. Fresh is used to pay the bills but thats it. Profit comes from dry goods and Salt water. I mean just look at this site for example. More people doing DIY, or complaining that something is $5 more at the store. Salt is more of a money game and though you will find plenty of cheapos there are alot more people in it that spend the money necessary to be successful at it. So what im trying to say is if you want to be successful get very good at salt fish and corals, thats where its at.