Read more about the Readers' Picks: The Best Fish Products on Amazon, According to You at PetGuide.com.This list isn't at all fishy - it's based on your purchases. We went over the most popular fish-related items bought by our readers on Amazon last year to bring you this rundown.
We thought it would be fun to write a product guide about the brands and items our readers already love and trust. After all, so many fish-owners can't be wrong; you're all experts at what works best in your tanks. From thermostats to water testing kits and aquarium substrate, here are a few of the bestselling items from 2017.