like Quinns stuff truely amazing give him a call at prairie reef supplies for some very cheap too .:mrgreen:

Copanies use the term "XXX free" rather than "no XXX" because linguistically, it's a euphemism, and it has plenty of grey area for lawsuits :). Think freedom vs. rights.

It's a euphemism, just like "smaller chance of..." and "most cases..." etc etc... All product packaging is full of euphemisms :D

There are so many amusing loopholes in this stuff. My g/f brought home some No MSG Added (I'm really alergic) sausage once, that had modified corn starch in it. I had to explain to her that the label was useless as "modified corn starch" is about 49.9% MSG.

Most people that use Black Diamond seem happy with it though, I imagine the cost of lab grade stuff would be prohibitive.

not always, see asmodeus post :wink:

I just switched to Seachem's Purigen because of all this phosphate BS and I've never looked back.

Costs more initially, but more economical in the long run.