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Q&A How can a salty ocean be turned purple?

On my Conworld, the oceans are purple. This is mostly for aesthetic purposes and my current explanation is an abundance of cyanobacteria. I'm not sure that this explains it correctly, so what could...

3 answers  ·  posted 5y ago by Greenie E. - Reinstate Monica‭  ·  last activity 5y ago by Greenie E. - Reinstate Monica‭

Question water ocean