pH and oxygen/temperature
> From: HNH2Ogar at aol_com
> Am really enjoying all the info in here. My main field of interest though is
> in water gardening and related fishkeeping. A current topic being bandied
> about among such folks is the question of oxygen and temperature impact on pH
> levels. Can anyone enlighten me as to possible relationships? Thanks!
> Helen Nash
I can't think of any direct effect oxygen or temperature has on pH.
Some possible indirect affects might be:
Higher temperature: more biological activity producing CO2 through
photosynthesis (lower pH due to more carbonic acid), faster
decomposition of waste (more CO2 and acidification from nitrate
generation); this would tend to lower O2. Also, warmer water has
lower dissolved O2 levels.
Higher oxygen levels: more bacterial activity (lower pH) and oxidation
(reduction) of organic compounds (lower pH).
I don't think either of these effects would make much of an impact on
pH, certainly not measureable with hobbyist test kits.