Damselfish are some of the most colourful, abundant, cheap and hardy fish available to the marine keeper, but they can have their drawbacks.

Keep marines and soon you’ll be in the market for a protein skimmer. Here are some of the most frequently asked questions.

Divide chores into daily, weekly and monthly. Just 10 minutes a day and an hour a week will keep the tank looking tip-top, leaving lots of time to sit back and enjoy.

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

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.

Corals are marine animals which need light, water and food but if you’ve got all that and they’re still dying, here’s what to look for and remedy.

High nitrates can be one of the biggest causes of algae in marine tanks, but there’s plenty of ways to reduce them. Read our helpful guide to find out how.

High powered LED lighting is necessary for demanding SPS hard corals as they require very bright light.

Angelfish are iconic marine fish and most people with marines want to keep them. They are some of the most beautiful reef fish but they aren’t without their issues.