i like phosban i think its by two little fish or somthing like that. via aqua has a reactor that has worked good for my too but i would say phos ban would be my first choice. you will also need a pump to run it. via aqua comes with a cheap power head.
60 ga. SPS tank w/ 2 - 175w 20k halides, korallin 1502 calcium reactor w/ph contorler
24ga. SW nano w/150 HQI
180ga. FW aggresive fish
125ga. FW w/60ga. sump. VERY aggresive fish