Tropical Freshwater Fish


  • Preface
  • Introduction
  • Fish Anatomy
  • Water Chemistry
  • The Aquarium
  • Plant Care
  • Plant Species
  • Food
  • Disease
  • Biotope Aquaria
  • 'Species by Ecosystem' Database
  • 'Species by Country' Database
    		•
  • Fish Species
  • Non-fish Species
  • Breeding
  • Bibliography
  • Search
  • Catfish
  • Characins
  • Cichlids
  • Cyprinds
  • Killifish
  • Labyrinth Fish
  • Livebearers
    		•
  • Loaches
  • Others
  • Perches
  • Rainbowfish

    • NON-ENGLISH LANGUAGES
  • Croatian
  • Finnish
    		•


    The goal of a serious aquarist extends far beyond merely showcasing beautiful fish in a glass tank. A dedicated aquarium keeper strives to create a thriving, self-sustaining microhabitat—one that not only reflects the natural world but also fosters a deeper appreciation for its delicate balance. Freshwater and brackish tropical fish are among nature’s most extraordinary and diverse creatures, representing ecosystems teeming with life. Yet, many of these species are now endangered or even on the brink of extinction due to human activities.

    Deforestation, river damming, pollution, and the introduction of non-native species have devastated aquatic environments worldwide. Entire populations of fish that once flourished in pristine rivers and floodplains are now dwindling, their habitats degraded or destroyed. For aquarists, this is not just an ecological crisis—it is a call to action.

    As stewards of aquatic life, aquarium keepers have a unique opportunity to contribute to the conservation of wild freshwater fish and their habitats. By supporting responsible and sustainable fishkeeping practices, they can help protect these species in captivity while also raising awareness about the threats they face in the wild. This means:
    • Choosing captive-bred fish whenever possible to reduce pressure on wild populations.
    • Researching the origins of aquarium fish and ensuring they are sourced from ethical, sustainable fisheries.
    • Avoiding invasive species and never releasing aquarium fish into the wild, as this can disrupt local ecosystems.
    • Supporting conservation organizations that work to protect freshwater habitats and endangered fish species.
    • Educating others about the fragility of aquatic ecosystems and the role that responsible fishkeeping can play in their preservation.
    An aquarium is more than a display—it is a bridge between people and the natural world, offering a glimpse into ecosystems that many will never see firsthand. By approaching fishkeeping with knowledge, care, and ethical responsibility, aquarists can help ensure that the wonder of freshwater life remains not just confined to tanks but continues to flourish in the wild for generations to come.

    This site replaced fish.mongabay.com in 2021. The original fish.mongabay.com was launched in 2000, based on the text from Tropical Freshwater Aquarium Fish.