Marine Fish Encyclopedia — 80 Species Directory

A cardinalfish with beautiful black-white stripes and long fins. Mouth-brooding breeding observable in tank.

Bicolor with brown front and orange rear. Humorous algae-grazing behavior on rocks. Expressive face makes it popular.

Small saltwater fish divided into two colors: purple front half and vivid yellow rear half. Compact and hardy, easy to keep in small tanks and popular with beginners. Somewhat territorial.

Small marine fish in vivid cobalt blue. Extremely hardy, often used as pilot fish. Aggressive temperament.

A schooling damselfish shining pale blue-green. Peaceful and affordable, most classic beginner saltwater.

The iconic marine fish made famous by film. Lives in symbiosis with anemones, hiding among tentacles. Perennial beginner's choice in saltwater fishkeeping. Pair keeping enables breeding.

Hardy small fish with vivid blue or neon colors. Used as pilot fish for tank cycling.

A 'sand sifter' that cleans by scooping sand. Tank's worker responsible for sand bed cleaning and stirring.

Small colorful marine fish. Royal Dottyback is popular. Feisty but small size limits damage potential.

A glossy green reef crab valued as one of the few animals that eats troublesome bubble algae. A handy member of the marine cleanup crew.

A charming fish with small mouth eating seaweed. Also valued for controlling Aiptasia anemones.

A prized cleaner shrimp with a deep blood-red body, white-socked legs, and long white antennae. It cleans parasites off fish, is hardy and reef-safe, and is stunning to look at.

A vivid red hawkfish with habit of perching on corals. Hardy and easy to keep.

A cute small marine fish that perches on rocks. Has a habit of sitting still to ambush prey.

A wrasse with beautiful blue-green stripes. Eats pests like flatworms and bristleworms.

Fascinating tang that mimics angelfish (Lemonpeel, Eibl's) as juveniles. Adults turn olive-brown. Hardy and practical algae grazer.

Beautiful goby with white body scattered with orange spots. Has habit of symbiosis with pistol shrimp, and natural behavior of digging sand to make burrows can be observed. Easy for beginners.

A small marine fish with beautiful orchid-like vivid purple. Hardy and adds color to tanks.