Storms
Sulfide is a natural product of the breakdown of organic waste. That's why you smell the "rotten egg" odor around a sewage treatment plant. Proteins contain sulfur groups that are broken down by bacteria into sulfides or mercaptans. Mercaptans are the compounds that are used to add odor to natural gas and are made from sulfide. Sulfur compounds are requred by all organisms as a nutrient. Sulfide is highly toxic, I guess the question is whether enough is present in a tank to be a problem. I think a lot of it is removed by being precipitated as Iron Sulfide in a sand bed. That's the black material that is sometimes seen in the deeper parts of a sand bed. Iron sulfide is inert at the pH's we operate at.
Gary
Gary
125 SPS, 75 gal. LPS/softie reef, 9 gal. Nano
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