Tropical Fish Encyclopedia — 71 Species Directory
Encyclopedia of popular tropical fish species with care guides, traits, and water parameters.
Featured Tropical Fish
Showing 2 of 71 species
Marble Hatchetfish
Carnegiella strigata
Surface fish with distinctive axe (hatchet) -shaped body. 'Flying fish' that glides on water surface flapping pectoral fins like wings. Unique marble pattern and distinctive silhouette make it a striking accent in planted tanks.
TetraSurface fishHatchet
© Soulkeeper / CC BY-SA 3.0Rummy Nose Tetra
Red nose tip and black-white tail distinctive. Most uniform schooling among tetras. Better water quality means brighter red.
SchoolingRed noseWater indicator
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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.