Hi, guys... today went to my LFS spent there 260 dollars, this is what I came home with.... A, reverse osmosis filter and return pump. I have question about the reverse osmosis filter, is it suitable for my reef aquarium. Here is the link [url=http://www.osmoseapparaat.nl/AquaHolland+AquaPro/AquaHolland+AquaPro+50+Plus]AquaHolland AquaPro 50 Plus[/url] but basically it has 3 stages: Fase 1: Sedimentfilter Fase 2: Koolfilter Fase 3: RO Membraan