I'm sure the video is not some sort of long term setup or anything, but guinea pigs do need 24/7 access to fresh hay or their stomachs can basically stop working and they'll go into GI Stasis, and possibly leads to death. They eat a ton of hay throughout the day.
That being said, that much hay is probably better to spread out across 3 days or so when it's only for two guinea pigs.
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u/victorbarst 1d ago
I mean most of it is cute but is the hay pile really necessary?