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Marine Ornamental Fish & Invertebrate Breeders • View topic - Purigen

Purigen

Purigen

Postby johnrt » Sat Oct 01, 2011 8:56 pm

Hi
There have been several treads on activated carbon. Has anybody used Purigen and compared the two, or are they even comparable (doing the same job)?
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Re: Purigen

Postby spawner » Sat Oct 01, 2011 9:17 pm

What are you wanting to use if for? Why don't you want to use activated carbon.
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Re: Purigen

Postby johnrt » Sun Oct 02, 2011 11:42 am

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Re: Purigen

Postby Suzy » Sun Oct 02, 2011 2:51 pm

Very interesing study!

But, is SeaChem claiming it just removes nitrogen compounds? I use don't use activated carbon for that. I use bacteria! I am not sure why one would use a product to remove nitrogen compounds when bacteria removes them?
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Re: Purigen

Postby spawner » Sun Oct 02, 2011 3:55 pm

Carbon works mainly by adsorption, extremely small pore sizes. The PO4 issue is mostly from industrial carbon, not likely something you would see from "reef grade carbon". I'm not sure if this synthetic is charged or not. Charged compounds are not so effective in saltwater, as they were plenty of ions around to interact with. Do they say in saltwater or freshwater for the removal of nitrogenous compounds?
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Re: Purigen

Postby johnrt » Sun Oct 02, 2011 4:55 pm

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Re: Purigen

Postby Luis A M » Sun Oct 02, 2011 9:02 pm

I agree that of all agents used to improve WQ,carbon is the less understood,the most empirical.
But you seldom find problems using it,and PO4 leaching doesn´t happen with aquarium commercial carbon.
And you can tell when it is exhausted,the water turns yellow,(Gelbstoff).Or you can pass tap water thru it and check for Cl.
And these Purigen claims sound too "infomercial"(snake oil?) :lol:
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Re: Purigen

Postby johnrt » Sun Oct 02, 2011 9:36 pm

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Re: Purigen

Postby sunny d polyp » Tue Oct 04, 2011 12:02 pm

Isn't there research going on that has substantial proof that activated carbon causes lateral line disease in Tangs? That would be reason enough.
"If you opened my head there would be a plethora of copes swimming in a sea of phyto"
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Re: Purigen

Postby johnrt » Tue Oct 04, 2011 4:46 pm

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Re: Purigen

Postby Luis A M » Wed Oct 05, 2011 1:38 am

+1
And as Spotte explained years ago,if some trace elements are removed,much more are added in water changes and feeding.
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Re: Purigen

Postby sunny d polyp » Wed Oct 05, 2011 1:23 pm

I have Tangs and have always used AC, my water stays clean and I'm meticulous with my o2 patials as well as parameters but I have also had 2 tangs with lateral line even though I feed a variety of foods to them and not an overly aggressive tank. It is frustrating to say the least, that was why I posted to get a bit of input from those here that are able to keep their tangs healthy. I gave away both tangs to friends and neither of them use AC, both tangs cleared up within 8 months. That is not a scientific study by no means but when I read the article about the affiliation with using ac and lateral line it made me take up and notice. I had them in a 75/gal tank which I know is not recomended AT ALL and the person that got the sailfin has a 210 and the scopas went to a 180, so I prob didn't have any business placing them in a 75 in the first place but I'm still not totally convinced it was only due to tank size. I'm setting up a 120 in the next couple of weeks and I will keep it tang free for now.
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Re: Purigen

Postby Greshamh » Wed Oct 05, 2011 3:44 pm

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Re: Purigen

Postby Greshamh » Wed Oct 05, 2011 3:50 pm

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Re: Purigen

Postby Suzy » Wed Oct 05, 2011 9:03 pm

But, anaerobic bacteria removes nitrates, right? Does it remove po4?
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Re: Purigen

Postby PaulG » Thu Oct 06, 2011 10:43 pm

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