Dissolved Oxygen?

SDJustin

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I invested in a Neptune Systems PM3/dissolved oxygen probe. I love data and oxygen is of course super critical to respiration in fish/inverts (corals).

My average dissolved oxygen is 87.5%, minimum is 85%, and maximum is 91%. I'd like to get closer to saturation (100%) for longer (both day and night)

Randy Holmes-Farley, are those values 'good' ? Should I be optimizing for higher dissolved O2 levels or am I good and I should leave well enough alone?

How do these DO values compare with others?

I do run chaetomorpha in the sump with lighting at night but not consistently yet. I tried chaeto when the tank was brand new and it slowly wasted away. I tried sea lettuce (ulva lactuca) and it floats and reduces flow through my sump so had to go. I tried Ogo/Gracilaria Parvisipora and my mexican turbo snails in the sump devoured it within days (maybe they will be relocated to the display). I'm back to chaeto with an older (~6mo) tank and plan on rinsing it once every week to remove bio film. Hopefully it'll thrive now.

Any data/anecdotal info welcome!

Happy Reefing!

O2SENSOR.PNG
 

Scrubber_steve

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High Justin.
As your already aware algae & photosynthesis is the only way to get saturated oxygen levels in your aquarium, so keep trying to perfect the algae growth.
 

Randy Holmes-Farley

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There’s not a lot of data on what level of O2 is optimal, but I’d like to see it higher than you report. That said, it may also not be perfectly accurate. Google Eric Borneman’s three articles called The Right to Breathe. They have good data on the effects he saw relating to aeration, etc.
 
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