Keeping marine fish is different from keeping most tropical fish. Marine is a term used to describe salt water environments, so the main difference is salt levels. Marie salt is necessary, which does in fact differ from your common table salt.

Warm salt water evaporates quickly and a large tank can lose up to 25 liters a week. Marine fish don’t like big changes in salt levels, so an automatic top-up device is a good idea. This will regulate and maintain the levels, making your job much easier.

Another essential bit of kit that you should have is a protein skimmer, as this will help you keep the water clean. A protein skimmer should be used in conjunction with a biological or a natural filter system in your tank.

Another key piece of equipment includes a cooler or chiller. A cooler is a refrigeration unit that is connected to the main tank, keeping the marine water cool. Because so many tanks produce heat, it’s important to keep your fish at a constant cool temperature.

Be sure to ask for tips and advice at your local fish store before purchasing any fish you’ve never previously maintained.