Marine fish are salt water fish that come from the ocean, generally tropical reefs. The immense size of the ocean provides these fish with an extremely stable habitat, for this reason it is important to maintain the tank carefully, particularly pH and salinity in order for the fish to thrive. Specialist equipment such as protein skimmers is also required. As a general rule they will need relatively larger tanks than freshwater species and are kept at much lower stocking densities. Feeding some species of marine fish can be hard as they do not readily take flake or crumble foods and prefer to feed on frozen or live foods. Marine fish require knowledge, disciplined care and a level of expertise which makes marine fish a good choice for experienced and dedicated aquarists.

Things you might need

  • Large Fish Tank
  • Lighting
  • Heater/Thermometer
  • Air Pump/Stones
  • Food – flakes, pellets and live or frozen food
  • Test Kits
  • Filter/Skimmers
  • Live Rocks/Substrates
  • Decorations/Ornaments/Backgrounds
  • Sea Salt Mix
  • Fish Net/Maintenance Equipment

About Marine

There are essentially 2 different ways to set up a Marine Aquarium – Fish Only or a Reef System, reef systems contain Coral, Live Rock, Crabs and/or Shrimp in addition to Fish. Their care requirements are different to those of freshwater fish however, and their tolerance for variations in parameters such as temperature and pH is less than that of freshwater fish. The ocean is remarkably stable, with very little fluctuation on a daily or even annual basis, and for that reason it is very important to maintain a stable environment for any Marine fish held in an aquarium. It is important to spend time in establishing the tank well before adding any fish, and to monitor the conditions in the tank regularly once it is established. Many people achieve this, with the establishment of a regular routine and a few good maintenance habits.

Marine fish are some of the most beautiful fish available and their interesting behaviour, bright colours, and wide range of body shapes and sizes lend interest and colour to the home aquarium. Choosing tank mates should be done carefully as some species are

Some of the most popular marine aquarium fish species include.

  • Butterflyfish
  • Cardinalfish
  • Clownfish
  • Seahorses
  • Lionfish
  • Damselfish and Chromis

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