Help Guides

The frequency that you add fish is entirely dependently on water quality. Test your water and make sure ammonia and nitrite are zero before adding fish.

A biotope aquarium contains fish and plants that live together in the same place in nature. It replicates the habitat, water parameters and materials found there.

Much of the UK has hard water, especially the South East, but hard water doesn’t have to be a barrier to keeping tropical fish, as there are still loads to choose from.

Roller filters, also known as fleece filters, are mechanical filters that trap waste in water flowing through them using a roll of fleece.

Seahorses are some of the most recognizable marine fish, and everyone wants to keep them. They look very un-fishlike and cute, but they have their challenges.

The aim of any pond owner is to have clear, healthy water. Despite the filter’s job of trapping all that waste, a filter should actually be clean inside too.

Working out how much salt to add to your water for a marine aquarium can be overwhelming, but it doesn't need to be. Check out our tips on how much you need.

Some of the most popular tropical fish give birth to live young, and the difficulty is often not getting them to breed, but getting them to stop!

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.