Skip to content

Start Here Articles Learn Paths Tools

Problems Inspiration Finder About

Loading...

AquaMind shares expert knowledge about aquascaping, aquarium plants, fishkeeping, and aquatic ecosystems — connecting aquarium enthusiasts worldwide.

Learn

Start Here
Learning Paths
Articles

Explore

Database
Wiki
Fish
Plants
Corals
Invertebrates
Equipment

Solve & Tools

Problems
Tools
Inspiration
Finder Quiz

Follow

Get the latest posts via email

Your email

© 2026 AquaMind. All rights reserved.

Privacy Policy Terms of Service Cookie Policy

Cookie Preferences

Necessary

Required for the website to function. Cannot be disabled.

Analytics

Help us understand how you interact with our site to improve your experience.

Advertising

Used to show you relevant ads.

HomeDatabaseFishMarine Betta

Marine Betta — fish species (Cephalopholis argus)

Explore the Aquarium Wiki

Search fish, plants, corals & equipment side by side

Marine Betta

Cephalopholis argus

A colorful marine grouper with blue spots. Shy but predatory. May eat smaller tank mates. Needs hiding spots.

Care Parameters

Adult size

25 cm

Min tank

150 L

Temperature

24–28°C

pH

8–8.4

Diet

Carnivore

Temperament

Semi-aggressive

Difficulty

Intermediate

Related resources

Common fish problems

Stocking calculator

Compatibility checker