After almost 50 days since the last time we checked the columns we can see several changes in their composition.
We´ll be talking about the column B1 because the other column got lost at some point along these days.
as we can appreciate, the changes are noticiables:
- there are plenty of places with orange coloration (due to photoheterotrophic microorganism)
- darker areas mainly at the bottom part (because of the action of sulfate anaerobic breathers)
- olive green zones due to anoxigenic microorganism.
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