i'm thinking of adding another filter to my 180g tank. I currently have 2 xp3 running and I came across the unimax 700 with a built in 11w uv sterli. flowrate of 450g/hr. Foster & Smith has for $340 then I found it at lfs for $350. But I haven't found anyone who has used them. I'm just a little nervous to try before dropping some serious cash.