Jeremy Gay

Flatworms can be a pest in reef aquaria and if left alone they can multiply and reach plague proportions. Here’s how to control them.

An effective community aquarium features fish of all colours, shapes and sizes, but where they swim in the tank matters too.

Choosing marine fish can be a minefield, with most of the desirable ones like puffers and butterflyfish being unsuitable for reef tanks.

Want to keep fish but are unsure which tank to go for? Get started the right way with the Swell Buyer’s guide to aquariums.

Want to breed cichlids? Read our useful guide on the five easiest cichlids for you to breed at home, and get started the right way!

Autumn is a good time to build a pond because terrestrial vegetation is starting to die back yet the ground is moist, but not frozen, so easy to dig.

The key to managing disease in your fish tank is to observe your fish. Watch your fish every day but at the same time look for signs of ill health and disease.

Part of the appeal of a marine aquarium is the bright coral sand base that transports the viewer to a beach on a tropical island.

Plecos are popular aquarium fish, known for their sucker mouths and their algae-eating capabilities. Some plecos get big however or have specialised care requirements.