Welcome to The Goldfish Tank
The place to learn everything you need to know about goldfish
The Goldfish Tank is one of the world’s leading goldfish care websites. Our team of enthusiastic goldfish experts have helped over 5 million people care for their goldfish. Our expert advice has been featured everywhere from BuzzFeed to Smithsonian Magazine, Wikipedia to academic articles, and we love nothing more than helping readers take great care of their goldfish.
We’re adding new articles all the time, so please check back regularly. You’ll find our latest posts below, along with some of our most popular goldfish care articles.
Every article has the option to add a comment at the end, so please also join in the discussion and feel free to ask us a question. We’ll do our best to reply as soon as possible.
- Male or female goldfish? How to tell (with pictures)
What are the physical differences between male and female goldfish? And how do they behave when spawning?
- Ranchu Goldfish: Introduction & Guide to Ranchu Care
Learn all about Ranchu goldfish and how to care for them properly.
- Can goldfish live in a bowl? Why bowls are cruel
Goldfish cannot live in a goldfish bowl. If you have a goldfish in a bowl, here’s what you need to do right now.
- Oranda Goldfish: Everything you need to know
What are Oranda goldfish? How big do they get and how do you look after them?
- How to acclimate goldfish into a quarantine tank
A guest post by Sujit Modak, owner of fishkeeping blog Aquarium Tales
- Do goldfish eat snails? Or can they live together?
Do goldfish eat snails? Find out how you can safely add snails to your goldfish tank.