Learn more about goldfish with The Goldfish Tank

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 MagazineWikipedia 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.

We’ve also just launched Aqatic – a new website where our experts and other readers answer your aquarium questions.

The Goldfish Tank is here to help you care for your goldfish

Start Here: Goldfish Care Guide

If you’re new to keeping goldfish, our Introduction to Goldfish Care is the place to start!

Find out how big a tank you need for goldfish, what to feed your goldfish, how to do water changes, and more. Read the goldfish care guide now…

Goldfish Food

Like all living creatures, goldfish need a healthy diet in order to survive and thrive. But what is the best goldfish food?

Discover the types of goldfish food available, our top recommendations, and how you can create a varied goldfish menu by selecting a range of nutritious goldfish foods.

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.