Threeline tetra

Fish that get along4 min read

Temperament, fin nippers, fish that eat other fish, and fish that need the same water. And what the Harmony mark in the app means.

How to set up an African aquarium5 min read

Two completely different aquariums: forest rivers with soft, brown water, roots and leaves, and Rift Valley lake cichlids in hard, alkaline water with big rock piles.

How to add new fish4 min read

From the store to the tank: how to get the fish used to your water, why you should add only a few at a time, and what to watch for in the first few days.

Quarantine for new fish3 min read

Why new fish should live in a tank of their own for a few weeks before they move in, what you need, and what to look for.