Purigen turned red?

Dylan McKenzie Holloway

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Title says it all. Any one know why this could have happened? I added it recently with some carbon because my coral were acting up and my parameters were all good. No change in coral, but I'm gonna regenerate it and put it back in to see if it still happens after the carbon. I feed ocean nutrition green nori, and new life spectrum 1mm pellets.

20200505_132002.jpg
 
So both Purigen and a polyfilter turned red? Almost certainly that means an organic pigment from an organism like cyano.

 
So both Purigen and a polyfilter turned red? Almost certainly that means an organic pigment from an organism like cyano.


Thank! I was gonna post in that thread if I got any experiences of purigen turning red in other peoples tank that used the Nori that I use. I did an experiment where I placed a little piece in some tank water in a cup and it eventually turned that little bit of water pink. It's green nori so I don't know why it would do that. I never had purigin or poly filter in the tank before to know if the
 
Even though it looks green, nori contains many colored pigments and is generally considered a red seaweed.


" Nori is the Japanese name for edible seaweed (a "sea vegetable") species of the red algae genus Pyropia, including P. yezoensis and P. tenera. "


"Contents of photosynthetic pigments in a new cultivar (abbreviation: TGZRW) bred by interspecific crossing between Porphyra tenera and P. yezoensis were measured. All contents of chlorophyll a, phycoerythrin and total pigments, and almost all contents of carotenoid and phycocyanin were more abundant in the TGZAW than in the growers' cultivars. These results represent that the TGZRW is better quality in taste and color than the growers' one. "


"Carotenoids (/kəˈrɒtɪnɔɪd/), also called tetraterpenoids, are yellow, orange, and red organic pigments that are produced by plants and algae, as well as several bacteria, and fungi."



"Phycoerythrin (PE) is a red protein-pigment complex"
 
Even though it looks green, nori contains many colored pigments and is generally considered a red seaweed.


" Nori is the Japanese name for edible seaweed (a "sea vegetable") species of the red algae genus Pyropia, including P. yezoensis and P. tenera. "


"Contents of photosynthetic pigments in a new cultivar (abbreviation: TGZRW) bred by interspecific crossing between Porphyra tenera and P. yezoensis were measured. All contents of chlorophyll a, phycoerythrin and total pigments, and almost all contents of carotenoid and phycocyanin were more abundant in the TGZAW than in the growers' cultivars. These results represent that the TGZRW is better quality in taste and color than the growers' one. "


"Carotenoids (/kəˈrɒtɪnɔɪd/), also called tetraterpenoids, are yellow, orange, and red organic pigments that are produced by plants and algae, as well as several bacteria, and fungi."



"Phycoerythrin (PE) is a red protein-pigment complex"

Randy I think I just need your cell number. You seem to be answering most of my questions lately. Thanks! I would think carbon would take out the red pigment right?
I'm gonna do a 20% water change and add some BRS rox 0.8 carbon I just got in the mail for my reactor.
 

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