<a href=showthread.php?s=&postid=12868472#post12868472 target=_blank>Originally posted</a> by FranktheTankTx
I know. I still have some here that was unused. I'm surprised no one has chimed in yet. Most people hate the stuff. Like I said, it seemed to do the job for me. For what it's worth... I used it for 4 or 5 months and witnessed no ill effects on my reef tank. So I think it's safe. However, I have heard several people mention a negative about the product.
I just planned to get the GFO stuff since everyone swears by it.