aotf Posted October 29, 2017 Report Share Posted October 29, 2017 Hi all, I picked up some Sera Spirulina Tabs for my shrimpos yesterday (saw a good deal, 27% spirulina, wanted to try them out) and checked the ingredients before putting any in the tank. Turns out there's a colorant called "sodium copper chlorophyllin" that I wanted some opinions on. My guess is that it's totally fine and that the copper is in very minute levels and/or in a form that is not bioavailable or of concern for shrimp, but I figured I would see if anyone has any experience with it before throwing it in my tanks. Thanks! Quote Link to comment Share on other sites More sharing options...
oem Posted October 30, 2017 Report Share Posted October 30, 2017 I did a quick search online and the FDA website has some interesting (and scary) info on this compound. I would check it out. I'm not saavy enough to get the link on here. Quote Link to comment Share on other sites More sharing options...
aotf Posted October 30, 2017 Author Report Share Posted October 30, 2017 3 hours ago, oem said: I did a quick search online and the FDA website has some interesting (and scary) info on this compound. I would check it out. I'm not saavy enough to get the link on here. What's the scary info? I also did some quick searching and it looks like it's naturally extracted chlorophyll that's undergone a couple changes and had the magnesium replaced by copper. The impact on humans seems like it would be very small (chlorophyll is fine, copper is fine in those doses). I have no idea what amount is too much for shrimp, though. Quote Link to comment Share on other sites More sharing options...
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