Help Guides

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

Catfish are an amazingly diverse group, named of course after their cat-like whiskers. They range in size from just a couple of cm to three metres in length.

Check our the most frequently asked questions on the ever-popular star of Finding Nemo, the Clownfish, and our experts answers to them.

Airpumps are really important pieces of kit for any aquarium for a number of reasons, but how do I know which one is right for my tank?

If you find a dead fish in the pond the first thing to check for is oxygen, which you do visually. Then, check your equipment, and of course, test your water.

Want to add some live plants to your pond but unsure where to start? Our experts have put together this useful guide to buying pond plants.

Small, colourful, undemanding, cheap, tetras have it all and few tropical community tanks run without them. Here’s what you need to know.

Keep tropical fish for any length of time and sooner or later you’ll be drawn to the salty side, but how do you convert a freshwater tank to marine?

Getting the right food for your fish can be critical to their well being. Feed the right food and you can enhance growth, colour and immune system.