rowaphos or GFO

[straightrazorguy]

I have only used ROWAphos, so I cannot comment on the other products. It treated me really well; it brought the phosphates from 0.7 to 0.2 in less than a month, and it's still dropping. Add to this the fact that I lost a fish that I never found (in the tank), with no noticeable increase. I like the fact that it seems to bring PO4 down gradually, but steadily. All my corals are fine, so I will continue using it.