Poly Filter Media - Colour Change

Val_S

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Hello, I've been testing out the new poly filter media in light of some tank losses I was trying to figure out (that whole fiasco is in another thread so I won't go into it too much).
Long story short the media pad turned a light green and some blue patches in 24 hours.
I haven't used any medicines lately, and I don't know if thats indicative enough for copper.
I'm just surprised it changed colour that much and that fast, what could this mean?

I also know you can keep the poly filter in for a few months as it will not leech out whatever it absorbs so I took one out yesterday to observe the colour change and hope it will be okay to pop back in. I don't have a 10% marine solution to rinse it in as advised in the instructions....

Hope these questions make sense, I'm new to using this kind of thing

Cheers
 

coralbandit

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Blue indicates copper ...
Orange iron
Bright red aluminum
Bright yellow ammonia ,amines or solvent...
Seachem makes cuprisorb [a synthetic resin for removing copper]...
 
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