Quote:
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Originally Posted by michika
What causes O2 to drop in the evening? Just the lack of water circulation?
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Lots of algae/macroalgae will add lots of CO2 at night and O2 during the day.
Also, was doing some reading on isopods today related to an incident that happened to me last night.
Here are two articles on parasitic and scavenger isopods .....
http://reefkeeping.com/issues/2002-05/rs/index.php
http://reefkeeping.com/issues/2006-02/bp/index.php