The freshwater fish blog
Worlds Fish
Guides about keeping freshwater aquariums: setting up tanks, choosing fish, growing plants, and feeding routines that work in real homes. Written by people who keep tanks, updated when we learn better.
Recent posts
The newest guides, freshly published.
How Often Should You Feed Your Fish? A Practical Guide
How often and how much to feed aquarium fish:...
Aquarium Plants 101: Easy Greenery for a Healthier Tank
The easiest aquarium plants to start with, how to...
5 Common Fish Care Mistakes (And How to Avoid Them)
The five fish care mistakes behind most avoidable tank...
Aquascaping on a Budget: 7 Layouts Anyone Can Build
Seven aquarium layouts you can build cheaply with plain...
10 Freshwater Fish That Are Perfect for Beginners
The best freshwater fish for a first tank: hardy,...
Worlds Fish is a small, independent blog about keeping freshwater aquariums. We write the guides we wish we had found when we started: tested on our own tanks, honest about cost and difficulty. No affiliate pitches, no pressure to buy anything.