Jeremy Gay

KH is probably the most important water quality parameter after salinity and temperature. More important maybe, than Phosphate.

Think of an unheated, coldwater aquarium and you may be forgiven for thinking that your fish choice is limited to goldfish.

All tropical, coldwater and marine aquariums should be tested for Ammonia, Nitrite and Nitrate. We use these test kits to tell us if there are beneficial bacteria present.

Loaches are a diverse group of popular aquarium fish that naturally inhabit tropical, temperate and cold freshwaters, and they make great choices for fishkeepers.

Autumn is upon us so its time to start thinking about preparing the pond for the colder months. Use a pond thermometer to monitor the water temperature.

The ultimate aim for any fish pond owner is to be able to view and enjoy their fish. Here’s the Swell UK guide to getting gin-clear pond water.

An effective aquascape is key to a successful reef tank, as it dictates water flow in around the corals, as well as providing them with places to be anchored.

Gouramis are one of the most popular groups of aquarium fish. They are widely available, cheap and offer graceful swimming, colour and a centrepiece fish.

Sterlet and Sturgeon are very popular because of their prehistoric, shark-like looks and the way they stick their noses out of the water.