Quote:
Originally Posted by bertoni
An anaerobic and photosynthetic zone would be hard to accomplish. Photosynthesis produces a lot of oxygen. Is there a reason you'd like to area to be anoxic?
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Just from a simple high level, anoxic areas are part of the oceans ecosystem to break stuff down that effects SPS growth and coloration where it could not otherwise be exported. I don't think it needs to be much more than clear acrylic beads increasing surface in a very low flow or protected area, perhaps receiving light from underneath and elevated acrylic sump.
Quote:
Originally Posted by bertoni
ORP is a complicated issue in an aquarium:
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Ozone will be controlled by the apex to maintain a range of 350-400 mV at a rate of 50mg/hr. The frequency of ozone kicking on is what concerns me, e.g. ideally ozone would never kick on, or only briefly after feeding, etc.