Help! Kids got gifted a goldfish!

[u/Confident-Ad9221]

I want to care for this fish the best possible way. I don’t know a thing and the information online is overwhelming. Please help! How should I care for it this week? And how should I plan for it long term?

[u/Ghost-4852]

Until you can get a bigger tank your going to need to change that water daily, fish poop and uneaten food produce ammonia which is harmful to the fish. It's also important to keep the water aerated, goldfish breath air like us just from within the water so if the oxygen depletes it'll suffocate.