IntermediateMadagascar Rainbowfish
Bedotia madagascarensis
- Adult size
- up to 15 cm
- Aquarium size
- 160 L or larger
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 22–25 °C
Aquarium Fish Database
Explore freshwater aquarium fish by care level, size, temperament, swimming zone, water parameters, and compatibility.
Intermediate
Beginner – IntermediateMagnificent Killifish
Hypsolebias magnificus
- Adult size
- up to 5 cm
- Aquarium size
- 45 L or larger
- Temperament
- Peaceful
- Zone
- Bottom to middle swimmer
- Temp
- 22–26 °C
Beginner – IntermediateMahecola Barb
Puntius mahecola
- Adult size
- up to 7.5 cm
- Aquarium size
- 80 L or larger
- Temperament
- Peaceful
- Zone
- Bottom to middle swimmer
- Temp
- 17–23 °C
Beginner – IntermediateMalabar Danio
Devario malabaricus
- Adult size
- up to 10 cm
- Aquarium size
- 120 L or larger
- Temperament
- Peaceful
- Zone
- Bottom to middle swimmer
- Temp
- 17–25 °C
Beginner – IntermediateMalayan Bumblebee Catfish
Leiocassis poeciloptera
- Adult size
- up to 17 cm
- Aquarium size
- 240 L or larger
- Temperament
- Peaceful
- Zone
- Bottom dweller
- Temp
- 20–25 °C
IntermediateMamou Killifish
Scriptaphyosemion guignardi mamou
- Adult size
- up to 5.5 cm
- Aquarium size
- 80 L or larger
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 21–25 °C
Beginner – IntermediateMarble Hatchetfish
Carnegiella strigata strigata
- Adult size
- up to 4.5 cm
- Aquarium size
- 45 L or larger
- Temperament
- Peaceful
- Zone
- Top swimmer
- Temp
- 24–28 °C
IntermediateMarble Knifefish
Adontosternarchus balaenops
- Adult size
- up to 25 cm
- Aquarium size
- 300 L or larger
- Temperament
- Peaceful
- Zone
- Bottom to middle swimmer
- Temp
- 24–28 °C
IntermediateMarble Sturisoma Whiptail Catfish
Sturisoma aureum
- Adult size
- up to 20 cm
- Aquarium size
- 240 L or larger
- Temperament
- Peaceful
- Zone
- Bottom to middle swimmer
- Temp
- 20–26 °C
Beginner – IntermediateMarbled Hatchetfish
Carnegiella strigata fasciatus
- Adult size
- up to 4.5 cm
- Aquarium size
- 45 L or larger
- Temperament
- Peaceful
- Zone
- Top swimmer
- Temp
- 24–28 °C
IntermediateMarbled Headstander
Abramites hypselonotus
- Adult size
- up to 14 cm
- Aquarium size
- 160 L or larger
- Temperament
- Peaceful
- Zone
- Bottom to middle swimmer
- Temp
- 23–28 °C
IntermediateMarbled Sleeper Goby
Oxyeleotris marmorata
- Adult size
- up to 65 cm
- Aquarium size
- 900 L or larger
- Temperament
- Semi-Aggressive
- Zone
- Bottom to middle swimmer
- Temp
- 22–29 °C
Beginner – IntermediateMarliers Julie
Julidochromis marlieri
- Adult size
- up to 15 cm
- Aquarium size
- 200 L or larger
- Temperament
- Semi-Aggressive
- Zone
- Bottom to middle swimmer
- Temp
- 22–26 °C
Beginner – IntermediateMascara Barb
Dawkinsia assimilis
- Adult size
- up to 12 cm
- Aquarium size
- 120 L or larger
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 18–27 °C
Intermediate – AdvancedMbu Pufferfish
Tetraodon mbu
- Adult size
- up to 75 cm
- Aquarium size
- 900 L or larger
- Temperament
- Aggressive
- Zone
- Bottom to middle swimmer
- Temp
- 23–26 °C
Beginner – IntermediateMegaptera Apistogramma
Apistogramma megaptera
- Adult size
- up to 7 cm
- Aquarium size
- 120 L or larger
- Temperament
- Semi-Aggressive
- Zone
- Bottom to middle swimmer
- Temp
- 22–29 °C
IntermediateMegasema Eartheater
Geophagus megasema
- Adult size
- up to 18 cm
- Aquarium size
- 240 L or larger
- Temperament
- Peaceful
- Zone
- Middle swimmer
- Temp
- 22–30 °C
Beginner – IntermediateMeghalaya Danio
Danio meghalayensis
- Adult size
- up to 10 cm
- Aquarium size
- 120 L or larger
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 17–26 °C
Intermediate – AdvancedMeghalaya Leopard Snakehead
Channa paradalis
- Adult size
- up to 15 cm
- Aquarium size
- 200 L or larger
- Temperament
- Aggressive
- Zone
- Bottom to middle swimmer
- Temp
- 20–28 °C
IntermediateMelanzona Guppy
Poecilia parae
- Adult size
- up to 5 cm
- Aquarium size
- 45 L or larger
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 23–27 °C
Beginner – IntermediateMelon Barb
Haludaria fasciata
- Adult size
- up to 6 cm
- Aquarium size
- 80 L or larger
- Temperament
- Peaceful
- Zone
- Bottom to middle swimmer
- Temp
- 22–26 °C
Beginner – IntermediateMendezi Dwarf Cichlid
Apistogramma mendezi
- Adult size
- up to 7 cm
- Aquarium size
- 120 L or larger
- Temperament
- Peaceful
- Zone
- Bottom to middle swimmer
- Temp
- 23–29 °C
BeginnerMerry Widow Livebearer
Phallichthys amates
- Adult size
- up to 7 cm
- Aquarium size
- 60 L or larger
- Temperament
- Peaceful
- Temp
- 23–26 °C
Beginner – IntermediateMexican Tetra
Astyanax mexicanus
- Adult size
- up to 12 cm
- Aquarium size
- 120 L or larger
- Temperament
- Peaceful
- Zone
- Middle swimmer
- Temp
- 20–25 °C
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