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PolyFilters?

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Macbeth417

Reef Monkey
Joined
Oct 18, 2003
Messages
563
Location
Seattle, WA
I have slight problem. I tested a tank today and found it still has
about .05 - .08 ppm copper present. I was foolish and used some algacide about 2 years back in this tank (silicone seams and plastic Powerhead sucked up the Cu) and becuase I can not determine the speciation of the copper with any test I am unsure whiether or not it is bio-avaible. So as of now, I need to house some inverts in that tank for bit, but I am not sure of the toxicity of this latent copper.

Long story short: Where can I get some polyfilters locally and is this the best option (is thier a more effective resin) ?

-Erik
 

fishermann

Well-known member
Joined
Jul 13, 2003
Messages
670
Location
Searcy, Arkansas
poly filters are REALLY great at getting out copper very quickly, you can actually see them turning blue with copper within hrs. I get industrial strength ones from drsfostersmith.com. Aquaium concepts sold the standard ones, but since they aren't retail anymore i would try blue sieara, other than that marine depot has the regular poly pads.
 

Macbeth417

Reef Monkey
Joined
Oct 18, 2003
Messages
563
Location
Seattle, WA
Well folks looks like my test was reading .08 too high.
I tested it on tank water twice then on RO/DI water then on 50/50. It read about .08 on Ro/Di, .09 on tank and .08-.09 on 50/50.

Whew! So the deviation was about about .08ppm. I can handle < .01ppm Cu. Out of the 10ppb I doubt there's a great a deal of it in a toxic speciation. Nothing but happy polyps poking out of that purp tip.

WEEEEEE!

-Erik
 
Last edited:

fishermann

Well-known member
Joined
Jul 13, 2003
Messages
670
Location
Searcy, Arkansas
glad to hear things are fine, i'm not sure what is safe levels for corals. i have read not to put in tanks that has ever had copper in the substrate or rock that has been in copper. i have heard of people dong it after using poly pads to get it out of everything, people claim they are that good at removing copper. good luck
 

iamjosh

Well-known member
Joined
Feb 22, 2004
Messages
265
Location
Spokane, WA
Seams I saw a poly filter that attached to powerheads, can't seam to find it anymore. If you know what I'm talking about I'd love a link.

thanks,
-josh
 
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