Marine Fish Encyclopedia
Browse our comprehensive collection of marine aquarium fish across 45 categories. Find detailed care guides, compatibility information, and species profiles.
🐠Clownfish
Hardy, colorful anemonefish popular with beginners and experts alike. Known for symbiotic relationships with anemones.
24 species
🐟Tangs & Surgeonfish
Active, herbivorous fish prized for algae control and vivid colors. Require spacious tanks for swimming.
34 species
👼Dwarf Angelfish
Compact, brilliantly colored angelfish suited to medium-sized reef aquariums.
27 species
👼Large Angelfish
Majestic, large-bodied angels that command attention. Require large aquariums and experienced care.
31 species
🐡Wrasses
Diverse, active swimmers known for pest control and vivid coloration. Many are reef-safe.
61 species
🐡Gobies
Small, bottom-dwelling fish with fascinating behaviors. Many form symbiotic bonds with pistol shrimp.
49 species
🐟Basslets & Grammas
Small, vibrantly colored reef-safe fish that thrive in caves and overhangs.
9 species
🐟Blennies
Personable, bottom-dwelling fish known for their comical behavior and algae-grazing habits.
37 species
🐟Chromis & Damselfish
Hardy schooling fish ideal for beginners. Chromis are peaceful; other damsels can be territorial.
21 species
🐟Cardinalfish
Peaceful, nocturnal fish that thrive in groups. Many species are mouthbrooders.
46 species
🐟Dottybacks
Brilliantly colored but often territorial small predators. Best kept with appropriate tankmates.
16 species
🐉Dragonets & Mandarinfish
Stunningly patterned fish with specialized feeding requirements. Best for established tanks.
8 species
🦋Butterflyfish
Elegant, disc-shaped fish with striking patterns. Many have specialized diets and care needs.
40 species
🦅Hawkfish
Perching predators with bold personalities. They rest on corals and rocks, watching for prey.
14 species
🐟Triggerfish
Intelligent, personality-rich fish with powerful jaws. Range from reef-safe to highly aggressive.
18 species
🐡Pufferfish
Charming, intelligent fish known for inflation defense. Not reef-safe but full of personality.
24 species
🦁Lionfish & Scorpionfish
Dramatic predators with venomous spines and flowing fins. Fascinating but require careful handling.
11 species
🐟Groupers & Basslets
Robust predators ranging from small reef species to massive display fish.
28 species
🐍Eels
Serpentine predators with fascinating behaviors. Require secure lids and appropriately sized tankmates.
27 species
🐰Foxfaces & Rabbitfish
Excellent algae grazers with venomous dorsal spines. Generally peaceful and reef-safe.
11 species
🐟Filefish
Unusual, often well-camouflaged fish. Some species are prized for eating Aiptasia anemones.
12 species
🐟Jawfish
Burrowing fish that create elaborate dens in sand. Males are mouthbrooders.
8 species
🐟Anthias
Colorful schooling fish from reef slopes. Require frequent feeding and pristine water quality.
26 species
🐟Seahorses & Pipefish
Unique, slow-moving fish requiring species-specific tanks and specialized feeding.
7 species
🐟Goatfish
Bottom-feeding fish with distinctive barbels used to detect prey in sand.
4 species
🐟Squirrelfish & Soldierfish
Large-eyed nocturnal fish with red coloration. Hardy and interesting display fish.
13 species
📦Boxfish & Cowfish
Unusual geometric fish that release toxins when stressed. Require careful husbandry.
7 species
🦈Sharks & Rays
Impressive elasmobranchs for very large systems. Require expert care and massive aquariums.
7 species
🦇Batfish
Large, disc-shaped fish with flowing fins. Peaceful but grow very large.
3 species
🐟Hogfish
Robust wrasse relatives with prominent snouts. Active swimmers and good sand-sifters.
11 species
🐟Tilefish
Burrowing reef fish that build elaborate underground homes. Require deep sand beds.
4 species
🐟Pseudochromis
Small, brilliantly colored fish similar to dottybacks. Some species are captive-bred.
2 species
🐟Assessors
Small, cave-dwelling fish that often swim upside down. Peaceful and reef-safe.
2 species
✨Fairy & Flasher Wrasses
Stunning small wrasses known for their brilliant courtship displays. Reef-safe and active.
29 species
🔬Nano Fish
Tiny species perfect for nano aquariums under 30 gallons. Includes micro gobies and small blennies.
5 species
🌟Oddball & Rare Fish
Unusual and uncommon marine species for experienced aquarists seeking something different.
5 species
🐟Damselfish
Hardy, territorial reef fish known for their bold personalities and vibrant colors. Among the toughest marine aquarium fish.
32 species
🐟Pipefish
Slender, delicate relatives of seahorses requiring specialized care and gentle tankmates.
12 species
🐠Dartfish & Firefish
Peaceful, elegant reef fish known for hovering above the substrate and darting into burrows when startled.
6 species
🐟Grunts & Sweetlips
Colorful schooling fish named for the grunting sounds they produce. Hardy but require spacious tanks.
16 species
🐟Hamlets
Small, peaceful Caribbean reef fish prized for their beautiful color variations and reef-safe nature.
4 species
🐟Snappers
Robust predatory fish that add impressive presence to large fish-only aquariums.
2 species
🐸Frogfish
Bizarre ambush predators with incredible camouflage abilities. Masters of disguise that 'walk' on modified fins.
4 species
🦂Scorpionfish
Masters of camouflage with venomous spines. These ambush predators are fascinating but require careful handling and species-appropriate tankmates.
6 species
🐟Rays & Stingrays
Graceful, bottom-dwelling cartilaginous fish with flattened bodies and whip-like tails. Require very large aquariums with sandy substrates.
10 species