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.

Tropical Fish Encyclopedia — 71 Species Directory

Encyclopedia of popular tropical fish species with care guides, traits, and water parameters.

Featured Tropical Fish

Ram Cichlid Endler's Guppy

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Schooling Small Planted tank Hardy Tetra Easy breeding Peaceful Colorful Algae cleaner Shrimp Ultra-small Unique Large Algae eater Red

Showing 4 of 71 species

Chili Rasbora

Boraras brigittae

Intermediate

One of world's smallest freshwater fish turning deep red. Schooling looks like a ruby jewelry box.

ChiliUltra-smallDeep red

Clown Killifish

Epiplatys annulatus

Intermediate

An ultra-small killifish with black-yellow stripes and distinctive rocket-shaped tail fin.

ClownKillifishRocket tail

Green Neon Tetra

Paracheirodon simulans

Beginner

Similar to neon tetra but blue-green line runs entire body. Ultra-small, most beautiful in large schools.

Green NeonBlue-greenLarge school

Pygmy Corydoras

Corydoras pygmaeus

Beginner

An ultra-small corydoras. Unusual habit of mid-water schooling, perfect for nano tanks.

PygmyUltra-smallMid-water

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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.