An encyclopedia of popular saltwater fish species with care difficulty, compatibility, and tank size requirements for each.
Key Takeaways
An encyclopedia of popular saltwater fish species with care difficulty, compatibility, and tank size requirements for each.
Marine fish are the beautiful creatures that color tropical oceans. Here's a detailed guide to the most popular species from beginner to advanced levels.
Clownfish (Ocellaris)
- Features: The iconic marine fish with vivid orange and white contrast. Lives in symbiosis with anemones
- Difficulty: Low (beginner-friendly)
- Tank size: 60cm+
- Community: Best kept as pairs. Strong territorial instinct toward same species
Blue Tang (Paracanthurus hepatus)
- Features: Vivid blue, black, and yellow coloring. Watch for tail spine
- Difficulty: Medium (susceptible to ich)
- Tank size: 120cm+ (needs swimming space)
- Community: Relatively peaceful. Quarantine introduction recommended
Yellow Tang
- Features: Solid bright yellow coloring. Herbivorous and helpful for algae control
- Difficulty: Low to medium
- Tank size: 90cm+
- Community: Gentle but avoid mixing with similar-shaped tangs
Blue Green Chromis
- Features: Pale blue-green metallic coloring. Beautiful schooling behavior
- Difficulty: Very low (one of the easiest marine fish)
- Tank size: 45cm+
- Community: Extremely peaceful. Also useful as test fish
Firefish (Nemateleotris magnifica)
- Features: White to orange gradient with a beautiful elongated dorsal fin
- Difficulty: Low to medium
- Tank size: 60cm+
- Community: Peaceful but timid. Avoid aggressive tankmates. Prone to jumping
Flame Angelfish
- Features: Vivid red-orange with blue-edged markings. A stunning dwarf angelfish
- Difficulty: Medium
- Tank size: 60cm+
- Community: Somewhat territorial. May nip at corals, so use caution
Royal Gramma
- Features: Striking two-tone—purple front half and yellow back half
- Difficulty: Low to medium
- Tank size: 60cm+
- Community: Somewhat shy but peaceful. Provide hiding spots for comfort
Mandarin Dragonet
- Features: Complex blue, orange, and green patterns. Often called the world's most beautiful fish
- Difficulty: High (requires live food)
- Tank size: 60cm+ (with abundant live rock)
- Community: Peaceful. Ample live rock and food supply are critical
Benefits of Purchasing on Bri-Choku
On Bri-Choku, you can purchase directly from marine fish breeders.
- Conditioned specimens: Choose from pre-fed and quarantined individuals
- Fair pricing: No middleman markup
- Care consultation: Ask breeders directly about keeping methods
Find Marine Fish on BreederDirect
Buy directly from verified breeders
View Marine Fish Category