HardMarbled Headstander
Abramites hypselonotus
12-15 cm22-28 °C200 L
Abramites hypselonotus, known as the Marbled Headstander, is a unique fish with a high body, suitable for experienced aquarists.
Open-source fish encyclopedia
Species spotlightDive into the world of freshwater aquarium fish
Everything you need to create and maintain a thriving underwater world at home: care, feeding, tank mates and breeding.
301species profiles
2languages
100%free & open source
Cockatoo Dwarf Cichlid
Apistogramma cacatuoides
- 6-8 cm
- 24-28 °C
- 70 L
The catalog
List of Freshwater Aquarium Fish
Explore our comprehensive articles on various species of freshwater aquarium fish. Each article provides detailed information on proper care, tank requirements, feeding and maintenance, as well as breeding. Discover the specifics of caring for different species and ensure your fish thrive in optimal conditions.
- Hard
EasyBanded Mountain Loach
Acanthocobitis urophthalmus
5-7 cm22-26 °C80 LThe Banded Mountain Loach, also known as Acanthocobitis Uropthalmus, is a small, peaceful bottom-dwelling fish, ideal for planted aquariums with plenty of hiding places.
EasyAcanthocobitis zonalternans
Acanthocobitis zonalternans
5-8 cm22-26 °C60 LAcanthocobitis zonalternans, commonly known as the Zebra Loach or Striped Loach, is a small, active bottom-dwelling fish with striking black-and-white stripes, making it a perfect addition to community aquariums. Learn more about its care, feeding, and unique characteristics.
EasyDwarf Horseface Loach
Acanthopsoides molobrion
3-5 cm22-28 °C80 LThe Dwarf Horseface Loach is a small, peaceful, and nocturnal burrowing fish, perfect for a mature soft-substrate aquarium with other small, gentle species.
NormalHorseface Loach
Acantopsis choirorhynchos
15-20 cm22-28 °C200 LAcantopsis choirorhynchos, commonly known as the Horseface Loach, is a unique bottom-dwelling fish with an elongated snout resembling a horse's face.
NormalAcarichthys Heckelii
Acarichthys heckelii
12-15 cm24-28 °C250 LAcarichthys heckelii, also known as Acaricht Heckelii, is a vibrant and unique freshwater fish renowned for its stunning colors and fascinating behavior.
NormalBlue Spotted Acara
Aequidens pulcher
15-20 cm23-28 °C200 LAequidens pulcher, commonly known as the Blue Spotted Acara, is a popular cichlid species recognized for its vibrant coloration and relatively calm temperament.
HardBlue Acara
Aequidens rivulatus
20-30 cm22-27 °C200 LThe stunning cichlid known for its vibrant colors and bold character, the Blue Acara is a popular choice among experienced aquarium enthusiasts.
EasySpotted Raphael Catfish
Agamyxis pectinifrons
15-18 cm23-27 °C150 LThe Spotted Raphael Catfish is a hardy, nocturnal, and peaceful bottom-dweller, known for the distinct clicking sounds it produces when stressed.
EasyYellow-Tail Congo Tetra
Alestopetersius caudalis
5-6 cm23-27 °C60 LA beautiful, active, and peaceful shoaling fish from the Congo River basin, the Yellow-Tail Congo Tetra is a jewel for the planted community aquarium.
- Easy
Blackfin Congo Tetra
Alestopetersius nigropterus
5-6 cm23-27 °C60 LA lively and colorful shoaling fish from the Congo River basin, the Blackfin Congo Tetra is a lesser-known but beautiful cousin of the more common Congo Tetra.
NormalCalvus Cichlid
Altolamprologus calvus
10-15 cm23-27 °C100 LAltolamprologus calvus, or the Calvus Cichlid, is a predatory cichlid from Lake Tanganyika, distinguished by its unique body shape and intriguing behavior. A species tank or carefully selected tank mates are necessary.
NormalCompressiceps Cichlid
Altolamprologus compressiceps
10-15 cm23-28 °C100 LAltolamprologus compressiceps is a predatory cichlid from Lake Tanganyika with a unique high and compressed body. Itrequires a rocky landscape and careful consideration of tank mates.
NormalConvict Cichlid
Amatitlania nigrofasciata
10-13 cm24-28 °C150 LThe Convict Cichlid, or Zebra Cichlid, is a popular aquarium fish known for its interesting behavior and ease of care. It is characterized by pronounced territoriality and parental care.
EasyDwarf Loach
Ambastaia sidthimunki
4-6 cm24-28 °C80 LAmbastaia sidthimunki, also known as the Dwarf Loach, is an active and social fish that is perfect for peaceful community aquariums.
NormalClimbing Perch
Anabas testudineus
20-25 cm22-30 °C200 LThe Climbing Perch, or Anabas, is a unique labyrinth fish capable of breathing atmospheric air, surviving out of water, and even moving on land. A predator that requires a spacious aquarium.
EasyStarlight Bristlenose Catfish
Ancistrus cirrhosus
8-10 cm24-28 °C80 LThe Starlight Bristlenose Catfish is a hardy algae-eater with stunning star-like spots, perfect for community tanks.
EasyLongfin Bristlenose Catfish
Ancistrus dolichopterus
12-15 cm22-26 °C100 LThe Longfin Bristlenose Catfish is a stunning pleco with elegant flowing fins, an easy-care algae eater for any tank.
EasyCommon Bristlenose Catfish
Ancistrus sp.
8-10 cm24-28 °C80 LThe Common Bristlenose Catfish is the perfect beginner's pleco, a tireless algae fighter and reliable tank cleaner.
EasyAnomalochromis Thomasi
Anomalochromis thomasi
6-8 cm22-28 °C80 LAnomalochromis Thomasi is a small but colorful and interesting cichlid, perfect for beginner aquarists. Its peaceful nature and hardiness make it an excellent choice for small aquariums.
NormalStriped Headstander
Anostomus anostomus
15-18 cm23-27 °C250 LThe Striped Headstander is a striking South American fish known for its head-down swimming posture. Requires a spacious tank and experienced care.
EasyBloodfin Tetra
Aphyocharax anisitsi
4-5 cm22-28 °C60 LThe Bloodfin Tetra is an active schooling fish with striking red fins. Hardy, peaceful, and perfect even for beginner aquarists.
EasyRed-Striped Killifish
Aphyosemion striatum
4-5 cm20-24 °C30 LThe Red-Striped Killifish is a vibrant West African killifish with striking red stripes. Undemanding and ideal for small planted aquariums.
NormalAgassiz's Dwarf Cichlid
Apistogramma agassizii
6-8 cm24-28 °C60 LAgassiz's Dwarf Cichlid is a colorful Amazonian dwarf cichlid with a distinctive spade-shaped tail. Ideal for planted soft-water aquariums.
NormalTwo-Stripe Dwarf Cichlid
Apistogramma bitaeniata
5-7 cm24-28 °C50 LThe Two-Stripe Dwarf Cichlid is an elegant Amazonian dwarf cichlid with elongated fins and vivid coloration. Prized for its beauty and peaceful nature.
EasyBorelli's Dwarf Cichlid
Apistogramma borellii
5-7 cm22-28 °C50 LApistogramma borellii is a colorful dwarf cichlid from South America with a peaceful temperament, well-suited for community tanks of 50 liters or more.
NormalCockatoo Dwarf Cichlid
Apistogramma cacatuoides
6-8 cm24-28 °C70 LApistogramma cacatuoides is a vibrant dwarf cichlid named for its cockatoo-like dorsal crest, prized for vivid colors and engaging behavior.
- Normal
Blue Spot Apistogramma
Apistogramma eunotus
5-7 cm24-28 °C80 LApistogramma eunotus is a rare Peruvian dwarf cichlid with vivid blue spots, ideal for planted soft water community tanks of 80 liters or more.
EasyPanduro Dwarf Cichlid
Apistogramma panduro
5-6 cm24-28 °C50 LApistogramma panduro is a striking dwarf cichlid from the Peruvian Amazon with vivid blue-orange coloring, ideal for small planted aquariums.
NormalThree-Striped Dwarf Cichlid
Apistogramma trifasciata
4-6 cm24-28 °C70 LApistogramma trifasciata is a striking dwarf cichlid from the Paraguay and Parana river basins, recognized by three bold dark horizontal stripes.
Aqua Life
About the Project
A comprehensive, open-source catalog of freshwater aquarium fish — built by aquarists, for aquarists.
01
300+ Species Catalog
Detailed profiles covering characteristics, feeding, care, breeding, and useful tips for each freshwater aquarium fish species.
02
Open Source
Built on open-source principles using Markdown format. All content is stored in a public GitHub repository anyone can contribute to.
03
Community Driven
Created by passionate aquarists who continuously research and add new data, ensuring the catalog remains a valuable resource for all levels.