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Purigen Carbon - 4 noob questions


potatocouch

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Guys, I bought this Purigen Carbon (was recommended by my LFS).

The carbon is in a bag and in the instruction, it was advised to rinse before use and to put it onto area with high flow.

4 questions:

  1. Do you rinse it with RODI water?
  2. Can I put this onto the overflow chamber? fits the criteria of "high flow" area.
  3. Do I just float this bag? My concern it will go to the next chamber and then next and then got sucked in the return pump or perhaps the skimmer pump, causing blockage.
  4. Would you recommend putting this Purigen Carbon when the tank is in cycle?
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purigen isn't carbon its a resin.

 

A quick rinse is fine no need for anything long.

 

put it where ever you want but high flow is best

 

it will move around if you just float it, and yes it will block skimmer pumps been there done that

 

dont use purigen while the tank is cycling

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Definitely don't use purigen while the tank is cycling if you're using decomposing matter as your source of ammonia. It adsorbs organics before they get a change to break down. I'm still not sure where it stands on adsorbing ammonia, nitrite, and nitrate, just that that's not its purpose.

 

Put it in an area of high flow, but make sure that mechanical filtration happens before it. It's super easy to clog Purigen. Do you not have a media basket/tray? If you need to, just clip it to where it needs to be. It'll be more passive than if you were forcing media through a basket, but Purigen's crazy strong anyway. Be careful with it.

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I believe mariaface's right about purigen's role in chemical filtration... it prevent nitrates from being formed by binding the precursors of the nitrogen cycle but I don't think it absorbs them once present.

 

No idea of whether it'll soak straight up ammonia... that would be an interesting thing to test.

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