Whatever route you go, be careful with your phosphate removers.
Especially the aluminum based media. (The white stuff). I had been using it for months with no negative results and then about a month before we got the GFO, I accidentally dropped a rock onto a filterbag full of a bunch of it in my 120 gal tank refugium. A thick cloud of white particles was released and ended up in my display. Within a day, all my mushrooms and anemonies were freaking out. I have done about 100 gallons of water change and am about ready to remove my entire sandbed. Seems the white particles are mixed into my deep sandbed and now whenever it gets disturbed, I have pieces of the white dust land on my corals and it hurts them. I had to move most of my stuff into the other tanks I have. I might have my first FOWLR tank if I cant get this stuff cleared up.
GFO is reported to have the ability to do the same thing if it is disturbed and settles on the flesh of clams. (Causes Pinched Mantle)
Be careful with any of this stuff. Nothing has died, but, it sure looked sick unitl I moved everything.
And my fish are all fine.