Best Pixar movie questions of 2016

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Finding Dory picture

Question: In the post-credit scene, The Tank gang are seen still trapped in their now algae-covered plastic bags as they reach California. Since this movie takes place a year after "Finding Nemo" (2003), how did these fish survive without eating anything for a whole year?

Answer: Algae on the inside of the bag?

dizzyd

Then what about being able to breathe or not being eaten?

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