Works kind of like water softeners, ion exchange, I have only seem them at a LFS, they say it works, I do not see any reason it shouldn't.
I do not know that it is any better than Purigen or activated charcoal or any other stuff...
The resin is probably safe enough, I have seen them operating in a fish store.
I tend to think it is a bit of a scam, but some folks think me a cheapskate, primarily spouse, mother-in-law, kids, employees, lawyers, accountants and pretty much anyone that have ever met me...
I would go with Purigen.
lightyear;56744 said:thanks for input. in contrary to me I avoid overrated product filled with marketing talks thats though I'm willing to pay for premium price once proven. i'll check purigen then, did it reaaly made your tank crystal clear?
hbosman;56755 said:Does Purigen remove nitrates or any other nutrients?