i honestly wouldn't do it if i were you, I've tried a small one to see if it works, it was a disaster, wasted a lot of money, it gets way dirty real fast, even with a good skimmer. some red algae of some sort starting to take over, took weeks to clean because it was so hard to scrub off, and this was only a short period of a couple months. it would work if you have a green house. there is someone who turned his pool into a SW pond, its was very nice, but unfortunately, he couldn't afford it any longer so he closed it down.