The Time Has Come To Speak of Many Things: Of Shoes--& Ships--& Salts-- & Organics
hbosman;56755 said:
Does Purigen remove nitrates or any other nutrients?
Hi All,
This is interesting to me and I think it is where a lot of the nonsense regarding fertilizers in aquariums comes in.
Activated carbon, Purigen and so forth remove “
organic” material. Organic nitrates and phosphates and so forth
act differently then the salts.
Activated carbon and Purigen remove organic nitrates and phosphates, but these “organics” appear, to me anyway to be
bad actors. So in a tank with a lot of organic compounds hanging around the level of Nitrates are reduced by the use of Purigen and so forth.
The salts we typically dose are not affected at all by Purigen.
I do not understand this other than to state the obvious, by definition to be
“organic” the compound must include carbon.

Further and equally obvious the electrical make-up and the interfacial pressures and behavior of “organic compounds compared to “salts” are different.
Somewhere in all of this comes the reason one group of honest and reasonably diligent folks can find, for instance, a level of Nitrates that appear to be toxic while another sees no problem with many times the level.
Always been curious about this.
Perhaps another thread...

Biollante