SW fish cost more than the average FW fish, and setting up a SW tank costs more as well, depending on what you want to stock. Running a SW tank is different that a FW tank, but it's not harder. Years ago, you used to have to mix the salt yourself, and that could be hard. Now, you purchase a prepared mix (such as Instant Ocean), and it's pretty easy.
Come check out the marine section here! Search around for setting up a tank, and you'll get a feel for what you'd need to purchase, and how much it will cost. Doing a 55 FOWLR could be done fairly cheap--under $400, less since you won't need to buy the tank. And you could easily spread that cost out over several months, so it wouldn't require a huge amount up front.
Come check out the marine section here! Search around for setting up a tank, and you'll get a feel for what you'd need to purchase, and how much it will cost. Doing a 55 FOWLR could be done fairly cheap--under $400, less since you won't need to buy the tank. And you could easily spread that cost out over several months, so it wouldn't require a huge amount up front.