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    The aquatics industry has become increasingly popular and since polyethene bags came into existence the hobby has grown from strength to strength. As the hobby grows so does our knowledge of fishkeeping, and with it the importance to monitor water quality.

    So what are the best types of fish to keep? Bearing in mind species of fish can be as different to each other as a mouse is to an elephant.
    Coldwater Fish versus Tropical Fish
    The term Coldwater fish refers to fish species that thrive in colder temperatures than the average Tropical Fish. Perfect examples of fish families that thrive in these environments are the Koi and the Goldfish. These families of fish generally have a longer life span, grow much slower and are considered easier to keep.
    Tropical fish are more numerous in varying types as breeds of this fish inhabit environments all over the world, and have adapted to that range from both freshwater, saltwater and coral fish. 
    Freshwater Tropical Fish
    Freshwater fish are those that do not live in the ocean but their natural habitats can be very diverse. One example would be the South American Cichlids that originate from The Amazon are soft acidic loving fish as are many Tetras and Catfishes. Whereas Cichlids originally from Central Africa, predominantly from the African Great Lakes such as Lake Malawi, Lake V
    Victoria and Lake Tanganyika, come from hard and more alkaline water.
    Saltwater/Marine and Coral Fish 
    The coral reefs have a multitude of diverse marine life, more and more tank bred marine fish are now appearing in our aquatic stores but still the majority of marine fish and invertebrates are taken from the wild. Marine life is generally more sensitive to the water parameters because marine aquariums are maintained at a high pH. 
    Examples of coral reef tropical fish are Damselfish and Yellow Tang fish.
    The corals and anemones and other photosynthesizing creatures will also depend on correct and adequate lighting.
    What fish are ideal for a novice aquarist?
    We would recommend starting with a freshwater community tank with species such as Livebearers, Barbs, Tetras and Rainbowfish. These fish, being coined as 'hardy fish' are adaptable to changes in pH levels, ammonia and temperature. This is itself provides a stress-free learning curve for any novice aquarist and provides the basis for further learning down the road.
    However there are no rules to which fish to keep. Whether it is a community tank, an aquascape tabletop aquarium or a large marine aquarium please remember to conduct a lot of research before deciding on your aquarium.