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DeepSeaHobbit t1_jac3jbv wrote

Reply to comment by TheRealSmallBean in ELI5: Why is it that when fertilizers make their way into waterways, all the oxygen disappears, killing the fish? by Psychological-Dog994

So, basically, too many algae leads to not enough algae?

https://tvtropes.org/pmwiki/pmwiki.php/Main/GoneHorriblyRight

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Patmarker t1_jacqp19 wrote

The problem is that the algae can survive in the low oxygen environment, it’s sitting on the surface accessing air. It has a great time, living, growing and dying, while preventing anything else from living there.

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