Is keeping marine fish difficult?

While more water quality management is needed compared to freshwater, starting with hardy species like clownfish or blue-green chromis makes it very manageable for beginners. Stable salinity and temperature are key.

How much do marine fish cost?

Clownfish range from 2,000-5,000 yen, blue tangs from 5,000-15,000 yen, and popular angelfish from 5,000-50,000+ yen depending on species and size.

How long do marine fish live?

Small fish live 5-10 years, while medium species like angelfish can live 10-20+ years. Proper environment and nutrition enable long-term care.

What should I check when buying marine fish?

Check for white spots or injuries on the body, intact fins, and that the fish is eating well. Choosing quarantined specimens gives extra peace of mind.

What equipment is needed for marine fish?

Basic equipment includes a tank, salt mix, refractometer, canister filter or overflow system, heater, and protein skimmer. Starting with a 60cm+ tank is recommended.

Marine Fish Encyclopedia — 80 Species Directory

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

Featured Marine Fish

Harlequin Tuskfish

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Small Hardy Beautiful Yellow Algae eater Reef-safe Reef safe Schooling Peaceful Purple Cleaner Large Tang Marine fish Mouthbrooder

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Flame Angelfish

Flame angelfish

Intermediate

Small angelfish with vivid red-orange body and black vertical bars. One of the most popular marine angelfish.

PopularAngelfishColorful

Foxface Rabbitfish

Foxface rabbitfish

Intermediate

Yellow body with fox-like face. Excellent algae eater for tank cleaning. Venomous dorsal spines.

Algae eaterYellowVenomous spines

Lemonpeel Angelfish

Lemonpeel angelfish

Intermediate

Bright lemon-yellow body with blue eye ring. Popular small angelfish. Somewhat feisty but manageable size.

AngelfishYellowSmall

Yellow Tang

Yellow tang

Intermediate

Iconic marine fish with brilliant all-yellow body. Eats algae, serving as tank cleaner. Hardy and long-lived.

PopularYellowAlgae eater

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Marine Fish FAQ

Is keeping marine fish difficult?: While more water quality management is needed compared to freshwater, starting with hardy species like clownfish or blue-green chromis makes it very manageable for beginners. Stable salinity and temperature are key.
How much do marine fish cost?: Clownfish range from 2,000-5,000 yen, blue tangs from 5,000-15,000 yen, and popular angelfish from 5,000-50,000+ yen depending on species and size.
How long do marine fish live?: Small fish live 5-10 years, while medium species like angelfish can live 10-20+ years. Proper environment and nutrition enable long-term care.
What should I check when buying marine fish?: Check for white spots or injuries on the body, intact fins, and that the fish is eating well. Choosing quarantined specimens gives extra peace of mind.
What equipment is needed for marine fish?: Basic equipment includes a tank, salt mix, refractometer, canister filter or overflow system, heater, and protein skimmer. Starting with a 60cm+ tank is recommended.

Marine Fish Encyclopedia — 80 Species Directory

Featured Marine Fish

Flame Angelfish

Foxface Rabbitfish

Lemonpeel Angelfish

Yellow Tang

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Marine Fish FAQ

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