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#17
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![]() Quote:
Bubbles are either Oxygen or Nitrogen. If they are on plants or only observed after the light has been on for a long time then they are result of photosynthesis. Good. Nitrogen bubbles are produced when anaerobic bacteria turn nitrates into Nitrogen, also good. Anaerobic bacteria shun oxygen and usually live in deep sandbeds, not all reef tanks get these anaerobes which take the nitrogen cycle one step further. |