Purigen

[JoeD323]

Hi all,
I was reading the label in the Purigen box and it says it is designed to absorb nitrogenous wastes such as ammonia, nitrite and nitrate. My question, since I know it is widely used in planted aquaria, is in regards to the ferts I dose and the use of purigen.

Does purigen absorb fertilizers in the same way it does nitrogenous wastes? What is the difference between purigen and activated carbon, which I know is much less widely used in planted aquaria for this very reason?


Joe

[DarkCobra]

It does adsorb a variety of complex nitrogenous wastes from decomposing organic matter. Which would eventually break down to simpler substances like ammonia, nitrite, and nitrate; and while these are still technically "organic" chemicals, Purigen doesn't significantly adsorb them.

So Purigen won't have any noticeable effect on nutrients from ferts.

[talontsiawd]

I agree with above post. I use Purigen on half my tanks (I don't use it in large canisters as I don't clean them enough) and nothing has changed after I add it. It's good stuff, many people use it with planted tanks, no reason not to.