Fish

If you find some eggs on the glass one day you may be wondering where they came from, but many fish, such as Corydoras lay eggs on the glass.

Discus are highly sought after and regarded by many as the kings of the freshwater aquarium. But there are a few things you need to know about before you keep them.

Cyanobacteria is often mistaken for algae but as the name suggests its a bacteria, not an algae at all. Because its not an algae, it needs to be tackled in different ways.

Angelfish are some of the most popular tropical fish of all time and are widely available. They top the lists for many new fishkeepers.

The Fluval Flex is a modern-looking aquarium with a funky shape and large filtration capacity. At 41x39x39cm it holds 57 litres/12.5 gallons.

This is one of the most frequently asked questions, and one that we’ll attempt to answer here. But it is subject to many variables which need to be addressed first.

Oscars are some of the most popular pet fish because of their character, intelligence and the way they interact with their owners, but are they a good choice for you?

Get into reefkeeping and one of the first things you’ll be recommended will be Clean Up Crew. Abbreviated to CUC online, but where do you start?

Got Goldfish? Have questions about them? Read the Swell Guide to some of the most frequently asked questions and answers on Goldfish.