We keep fish, so we write about keeping fish
About this blog
Worlds Fish started in 2018 with one 20-gallon tank, one algae problem, and a notebook full of questions that the internet answered badly.
Most aquarium content online is either a sales page in disguise or a forum argument from 2009. We wanted something else: guides written by people who genuinely keep freshwater fish, tested on real tanks, and honest about cost and difficulty.
This blog is run by four fishkeepers. Between us we maintain a few dozen tanks, from a 3-gallon shrimp jar to a larger community tank, and the advice we publish usually comes from one of our own water changes or rescue projects first. We answer reader questions on thecontact pageand we fix our articles when someone points out a mistake.
What this blog refuses to do: push gear you do not need, fake statistics, or assume you will never read beyond the first paragraph. What it tries to do: give you a clear, correct answer you can act on tonight.
How guides get written here
Tested, then written
We describe the tanks and routines we actually run. When a guide covers something we have not tried ourselves, we say so and we test it before the article stays up.
Kept current
Fishkeeping advice drifts as products and practices change. We review each article on a schedule and update the parts that are no longer true, rather than leaving old guides to go stale.
Honest about cost
We name the equipment we use and what it costs, including the cheap option that works just as well. You should never feel pressured to buy the expensive version to make our advice work.
Open to correction
If an article has an error, we want to hear about it. Corrections are published quickly and the article notes what changed, because being wrong quietly helps nobody.
Have a question or a correction?
Email the team or use the contact form. A human who keeps fish replies, usually within two business days.