How to Search for Freshwater Tropical Fish

The majority of common tropical freshwater aquarium fish originate in tropical rain forests across the globe. Most of these species have been bred in captivity and are available to hobbyists through breeders, aquarium dealer and pet shops. Many freshwater tropical fish are social and can be included in a community aquarium. Certain popular types, such as the oscar fish, tend to be aggressive and may require a species-only tank. Because freshwater tropical fish that are tank spawned or bred can become diseased just like wild fish, aquarists should choose their specimens with care.

Things You'll Need

  • Freshwater tropical fish identification book
  • Aquarium dealer
  • Freshwater tropical fish breeder
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Instructions

    • 1

      Decide on the species of fish you would like to keep. Aquarium dealers tend to hold a large variety of the more commonly available fish types, but may not always stock an equal selection of rare fish.

    • 2

      Visit your local dealer to source the readily available community fish, such as guppies, mollies, angelfish, neons, catfish and platys.

    • 3

      Contact a fish breeder if you are looking for a specific fish type that is not available at your pet dealer. Many aquarists specialize in breeding specific species of tropical fish. These hobbyists are dedicated to producing healthy specimens of high quality. The better breeders are always willing to offer advice as required.

    • 4

      Take a fish identification book to the dealer's shop. Choose fish that have the vivid colors that are shown in the color photographs.

    • 5

      Observe how the fish breathes. Healthy fish that are not stressed move their gill plates in a slow fashion. Diseased and stressed fish exhibit very rapid gill plate movements. Do not purchase these specimens.

    • 6

      Look for obvious signs of disease on fish, such as external parasites. Do not accept specimens from a tank that contains diseased fish, even if the individual fish you want appears to be healthy.

    • 7

      Ask to see the fish eat. Healthy fish always appear to be hungry and feed as soon as food is offered to them. Don't purchase fish that do not eat immediately or at least show interest in the food.

    • 8

      Ask to view a selection of social fish if you want a community tank. Large, aggressive specimens will require an aquarium to themselves.