Patmarker t1_jacqp19 wrote
Reply to comment by DeepSeaHobbit in ELI5: Why is it that when fertilizers make their way into waterways, all the oxygen disappears, killing the fish? by Psychological-Dog994
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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