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Old 02-21-2013, 07:33 PM   #1
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yellow, rusty dust?

Hello. Over a month ago I posted that I have some algae problem caused by overfeeding. Thanks to your suggestions problem is solved. Thanks. Nitrate went down to 5, Phosfate to almost 0. Phosfate and Nitrate went down that low because water changes and GFO reactor. Everything went back to normal in my 125 reef. Thanks. Little concern though. 2 days ago I started to see some yellow, rusty dust in my sump and fuge and in skimmer, nothing in display. Im sure its from GFO, that the color of pellets. They should look like boiling water, little tumbling,right/ Thats what they doing. Is it too much grinding and thats why that rusty color? I unplugged it just for safe. Or did I use too much? 1 1/2 cups. Please let me know. Thanks
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Old 02-21-2013, 08:27 PM   #2
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Yes, it should not be like boiling water - it should just barely be tumbling.

4:30 explains it.

BRS Media Reactors for Carbon and GFO - YouTube
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