If you want to alleviate the high costs of maintaining a reef tank, there are two ways to approach it. For one, you could lower your cost of operation. By cutting back on the electric bill and your consumables, you could save a significant amount of money. There are many ways to do this, such as using more energy efficient equipment and altering your maintenance routine. The other approach is to make money from your aquarium, and we all know the best way to do that is to sell coral frags. Most hobbyists usually employ a mixture of the two methods, with most probably leaning more toward the latter. Keep in mind, though, that both methods require a great deal of time to fully implement, and both will require some initial investment. Either way, both can help with the costs of reef keeping.