The pH of the ocean is approximately 8.3 and if you can pH up to 8.3 and hold it there, great, but most salt mixes mix to about pH 8.1.

Check out the most frequently asked questions regarding marine tanks and what goes in them, and read our experts answers to them.

Fish-only tanks are some of the most fun marine tanks because you get to include all the cool fish that can’t be kept with live corals.

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.

Cyanobacteria is often mistaken for algae but as the name suggests its a bacteria, not an algae at all. Because its not an algae, it needs to be tackled in different ways.

Aiptasia are the bane of many a reefkeeper’s life, and they can get so bad that people leave the hobby because of them.

Want to build a reef tank but unsure on all of the different types of coral? We’ve put together this useful guide to teach you about them.