Found the bagged guppy while fishing and found an interesting option when taking a look at it in my inventory:

Give this guppy a place to live!

Clicking on that option gives me a "Oh No! You don't have anywhere for this fish to live!" error. Does this allude to a place I can take it, or does that mean I need to start looking for an empty bottle/ coffee pot/ tank to put it into?

Thanks in advance!

EDITED: A very, very kind Anon gifted me an Empty Aquarium, explaining that the guppy can be put inside. Thank you, Anon. It was deeply appreciated, especially since you're not a fan of posting on the forums.