For starters, consider that buying anything from a pet store means forking over your hard-earned cash to a corporation that thrives on and perpetuates animal cruelty.
On the other hand, assuming there’s a shortage of no-kill fish shelters in your town, your only alternative to buying a pet store fish is going down to the river and catching one yourself -- and removing an animal from his natural habitat and imprisoning him in a tiny bowl is arguably worse than buying one who was born in captivity.
Ultimately, I would ask yourself why you want a fish in the first place. Will you be improving each other’s quality of life in any significant way, and sharing a loving relationship? Or do you just want it in your house as a decoration?
Photo credit: getye1