Bulldog goodeid

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 a Central American aquarium5 min read

Hard, alkaline water, sand and rock: an aquarium from the rivers and lakes of Mexico and Central America, with cichlids and livebearers.

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.