Tropical Fish Encyclopedia — 71 Species Directory
Encyclopedia of popular tropical fish species with care guides, traits, and water parameters.
Featured Tropical Fish
Showing 4 of 71 species
© Felix Gertz / CC BY-SA 4.0Dwarf Gourami
Dwarf gourami
Beautiful small anabantid with red and blue stripes. Breathes air with labyrinth organ. Builds bubble nests. Peaceful and popular.
BeautifulBubble nestPeaceful
© CHUCAO / CC BY-SA 3.0Otocinclus
Small catfish that eats algae on glass and plants. Peaceful and essential for planted tanks. More secure in groups.
Algae eaterSmallPeaceful
© Redspider / CC BY-SA 3.0Peacock Gudgeon
Tateurndina ocellicauda
A small gudgeon with beautiful peacock-like blue dot pattern. Peaceful, breeding enjoyable.
PeacockPeacock patternBreeding
Pearl Gourami
Trichopodus leerii
An elegant gourami speckled all over with pearl-like white dots; males flush fiery red on the breast. Peaceful, hardy, and able to breathe air.
Pearl patternGouramiPeaceful
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Tropical Fish FAQ
- Can beginners keep tropical fish?
- Guppies, neon tetras, and corydoras are hardy and perfect for beginners. They can be kept in small tanks, and as long as you manage water temperature, it's relatively easy to get started.
- How much do tropical fish cost?
- Neon tetras cost 100-300 yen each, guppies 300-2,000 yen, bettas 1,000-10,000 yen, and premium discus 5,000-50,000+ yen depending on the species.
- How long do tropical fish live?
- Small tetras live 2-5 years, guppies 1-2 years, corydoras 5-10 years, and discus 10+ years, varying greatly by species.
- What's the minimum equipment needed?
- You'll need a tank, heater, filter, light, and water conditioner at minimum. A 30cm tank can house 5-10 small fish and doesn't take much space.
- What should I check when buying tropical fish?
- Check for vivid coloring, active swimming, and no signs of disease like ich. After purchase, acclimate carefully and avoid sudden temperature changes.