Purigen and Yellow water - The Planted Tank Forum
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post #1 of 16 (permalink) Old 03-07-2005, 08:33 PM Thread Starter
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Purigen and Yellow water

I have some driftwood that makes my tank water slightly yellow which I do not like. A guy at the LFS suggested using Purigen. Will Purigen clear my water as suggested? Any negative effects of using this product in a planted tank.

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post #2 of 16 (permalink) Old 03-08-2005, 03:43 AM
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Purigen is a sight to behold. I use it in my planted tank and it looks like my fish are floating in air.

It's actually designed to be better for planted tanks. While carbon can absorb trace elements and nutrients, Purigen does not.
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post #3 of 16 (permalink) Old 03-08-2005, 08:56 AM
 
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Never tried it (all I have in my filters are bio media).

But the description does say that it removes nitrates so I would keep that in mind. Risks bottoming out your NO3.
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post #4 of 16 (permalink) Old 03-08-2005, 09:33 AM
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Quote:
Originally Posted by Laith
Never tried it (all I have in my filters are bio media).

But the description does say that it removes nitrates so I would keep that in mind. Risks bottoming out your NO3.
It doesn't absorb nitrates directly. It absorbs organic material that would otherwise break down into nitrates. Nitrates produced from the biological fish cycle won't be affected.
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post #5 of 16 (permalink) Old 03-08-2005, 04:48 PM Thread Starter
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I agree, I donít think there is product on the market that can remove nitrates that are produced as an end product of the cycle. Because that would be mean no more water changes. That would just revolutionize the aqua hobby market.
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post #6 of 16 (permalink) Old 03-08-2005, 04:56 PM
 
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I use purigen at work, but never considered it for a fish tank...what kind of ratio do you mix? Do you premix it, or add it directly to the tank? Is it harmful to fish or shrimp?
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post #7 of 16 (permalink) Old 03-08-2005, 05:00 PM
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It either comes in a bag or you can buy some loose and put it in your own size bag. I have it for my reef tanks and it is pretty good! I am going to add it to my planted tank once I put fish in it after a while!

It's a good product...never had a prob with it. And the best part is, once it turns a dark yellow. you can reuse it...all you need to do is dip it in a bucket with bleach and water...let it turn back to it's original sandy color, wash it out with some dechlorinator and it has regained all of it's properties to be used again! It's great! You just need to buy one and it will last forever!

SS
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post #8 of 16 (permalink) Old 03-08-2005, 05:10 PM Thread Starter
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I bought some yeterday for $13. I am going to use it on my reef tank also instead of carbon.
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post #9 of 16 (permalink) Old 03-08-2005, 05:35 PM
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I don't know if the relationship was a direct cause/effect linkage, but when I was starting my tank out, and had are real green water battle going on, I dropped some purigen in my filter. 36 hours later the green water was gone!

Maybe not connected, but if I get that problem again, I'm reaching for the Purigen straight away.

Steve - 33g reef and a 180g planted in need of a re-scape.
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post #10 of 16 (permalink) Old 03-08-2005, 08:04 PM
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Quote:
Originally Posted by Azimuth
I use purigen at work, but never considered it for a fish tank...what kind of ratio do you mix? Do you premix it, or add it directly to the tank? Is it harmful to fish or shrimp?
I'm not sure you're thinking of the right thing... Purigen has to go in a bag and be placed in the filter.

http://www.seachem.com/products/prod...s/Purigen.html

The bag it's in has to be a mesh with a maximum of 180 microns. Seachem makes one, called simply, "The Bag".
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post #11 of 16 (permalink) Old 03-08-2005, 08:10 PM
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Quote:
Originally Posted by Hypancistrus
The bag it's in has to be a mesh with a maximum of 180 microns. Seachem makes one, called simply, "The Bag".
You can also buy small quantities that are already in a small bag.

Steve - 33g reef and a 180g planted in need of a re-scape.
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post #12 of 16 (permalink) Old 03-08-2005, 08:11 PM
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Talking

Quote:
Originally Posted by scolley
You can also buy small quantities that are already in a small bag.
I forgot to mention that... the 100mL size is pre-bagged.
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post #13 of 16 (permalink) Old 03-08-2005, 09:12 PM
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Quote:
Originally Posted by Hypancistrus
I forgot to mention that... the 100mL size is pre-bagged.
And a 100ml is good for a 100gal tank?

Yves

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post #14 of 16 (permalink) Old 03-08-2005, 11:37 PM
 
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Quote:
Originally Posted by Hypancistrus
It doesn't absorb nitrates directly. It absorbs organic material that would otherwise break down into nitrates. Nitrates produced from the biological fish cycle won't be affected.
Ah! I missed that part!
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post #15 of 16 (permalink) Old 03-08-2005, 11:41 PM
 
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Quote:
Originally Posted by pk-sd
I agree, I donít think there is product on the market that can remove nitrates that are produced as an end product of the cycle. Because that would be mean no more water changes. That would just revolutionize the aqua hobby market.
There is a very common product that does exactly that: plants!

A lot of us *add* nitrates to planted tanks to give them enough nutrients...

It still does not eliminate water changes though. Water changes are still necessary to remove the build up of dissolved organics.

hhmmmm.... is that what Purigen does, remove dissolved organics? anyone tested this out thoroughly? I mean besides the visible results of good water clarity and removal of tanins?
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