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.

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.

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.

Sludge is ok in natural wildlife ponds but in ponds containing fish, it can lower oxygen levels and encourage algae growth.

Sumps can be used on any aquarium but are most popular with marine keepers. In essence, a sump is another aquarium attached to the main one.

In the midst of the summer solstice, UK ponds are receiving 18 hours of daylight. Here are some common pond problems around this time.