Beginner – IntermediateTransparent Blue Eye Rainbowfish
Pseudomugil pellucidus
- Adult size
- ≤ 1.4" (≤ 3.5 cm)
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 73–81°F (23–27°C)
Aquarium Fish Database
Explore freshwater aquarium fish by care level, size, temperament, swimming zone, water parameters, and compatibility.
Beginner – Intermediate
Intermediate – AdvancedTransvestite Dwarf Cichlid
Nanochromis transvestitus
- Adult size
- ≤ 2.8" (≤ 7 cm)
- Aquarium size
- 15 US gal (55 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length
- Temperament
- Peaceful
- Zone
- Middle swimmer
- Temp
- 73–79°F (23–26°C)
Beginner – IntermediateTropical Carp Gudgeon
Hypseleotris cyprinoides
- Adult size
- ≤ 3.1" (≤ 8 cm)
- Temperament
- Peaceful
- Zone
- Bottom to middle swimmer
- Temp
- 72–82°F (22–28°C)
Beginner – IntermediateTrue Flying Fox
Epalzeorhynchos kalopterus
- Adult size
- ≤ 5.9" (≤ 15 cm)
- Aquarium size
- 79 US gal (300 L) or larger / ≥ 47.2" (≥ 120 cm) minimum length
- Temperament
- Peaceful
- Zone
- Bottom dweller
- Temp
- 72–79°F (22–26°C)
IntermediateTurkana Jewel Cichlid
Hemichromis exsul
- Adult size
- ≤ 3.9" (≤ 10 cm)
- Aquarium size
- 30 US gal (114 L) or larger / ≥ 35.4" (≥ 90 cm) minimum length
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 72–81°F (22–27°C)
IntermediateTwo Banded Dwarf Cichlid
Apistogramma psammophila
- Adult size
- ≤ 2.4" (≤ 6 cm)
- Temperament
- Peaceful
- Zone
- Bottom to middle swimmer
- Temp
- 73–81°F (23–27°C)
Beginner – IntermediateTwosaddle Corydoras
Hoplisoma weitzmani
- Adult size
- ≤ 2.2" (≤ 5.5 cm)
- Aquarium size
- 16 US gal (60 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length
- Temperament
- Peaceful
- Zone
- Bottom dweller
- Temp
- 70–77°F (21–25°C)
Beginner – IntermediateTwostripe Corydoras
Corydoras bifasciatus
- Adult size
- ≤ 2.4" (≤ 6 cm)
- Aquarium size
- 26 US gal (100 L) or larger
- Temperament
- Peaceful
- Zone
- Bottom dweller
- Temp
- 72–79°F (22–26°C)
Intermediate – AdvancedUaru Cichlid
Uaru amphiacanthoides
- Adult size
- ≤ 9.8" (≤ 25 cm)
- Aquarium size
- 53 US gal (200 L) or larger / ≥ 47.2" (≥ 120 cm) minimum length
- Temperament
- Peaceful
- Temp
- 81–86°F (27–30°C)
IntermediateUaupesi Apistogramma
Apistogramma uaupesi
- Adult size
- ≤ 2.4" (≤ 6 cm)
- Temperament
- Semi-Aggressive
- Zone
- Bottom to middle swimmer
- Temp
- 72–84°F (22–29°C)
IntermediateUmbrella Apistogramma
Apistogramma borellii
- Adult size
- ≤ 2.6" (≤ 6.5 cm)
- Aquarium size
- 30 US gal (112 L) or larger / ≥ 31.5" (≥ 80 cm) minimum length
- Temperament
- Semi-Aggressive
- Zone
- Bottom to middle swimmer
- Temp
- 68–79°F (20–26°C)
Beginner – IntermediateUpside Down Catfish
Synodontis nigriventris
- Adult size
- ≤ 3.9" (≤ 10 cm)
- Aquarium size
- 18 US gal (70 L) or larger / ≥ 29.5" (≥ 75 cm) minimum length
- Temperament
- Peaceful
- Zone
- Bottom dweller
- Temp
- 73–81°F (23–27°C)
Beginner – IntermediateUrucu Corydoras
Hoplisoma urucu
- Adult size
- ≤ 1.2" (≤ 3 cm)
- Temperament
- Peaceful
- Zone
- Bottom dweller
- Temp
- 73–81°F (23–27°C)
Beginner – IntermediateVampire Otocinclus
Nannoptopoma sternoptychum
- Adult size
- ≤ 1.3" (≤ 3.3 cm)
- Aquarium size
- 20 US gal (76 L) or larger
- Temperament
- Peaceful
- Temp
- 72–81°F (22–27°C)
BeginnerVariatus Platy
Xiphophorus variatus
- Adult size
- ≤ 2.8" (≤ 7 cm)
- Aquarium size
- 20 US gal (75 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length
- Temperament
- Peaceful
- Zone
- Middle swimmer
- Temp
- 68–79°F (20–26°C)
Beginner – IntermediateVatani Rohtee
Rohtee ogilbii
- Adult size
- ≤ 19.7" (≤ 50 cm)
- Temperament
- Peaceful
- Zone
- Middle swimmer
- Temp
- 72–79°F (22–26°C)
Beginner – IntermediateVenezuelan Orange Corydoras
Corydoras venezuelanus
- Adult size
- ≤ 2.2" (≤ 5.5 cm)
- Aquarium size
- 16 US gal (60 L) or larger
- Temperament
- Peaceful
- Zone
- Bottom dweller
- Temp
- 64–79°F (18–26°C)
IntermediateVentralis Featherfin Cichlid
Ophthalmotilapia ventralis
- Adult size
- ≤ 5.9" (≤ 15 cm)
- Aquarium size
- 61 US gal (231 L) or larger / ≥ 59.8" (≥ 152 cm) minimum length
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 73–81°F (23–27°C)
Beginner – IntermediateVietnam Golden Line Minnow
Araiocypris batodes
- Adult size
- ≤ 1.4" (≤ 3.5 cm)
- Temperament
- Peaceful
- Zone
- Bottom to middle swimmer
- Temp
- 72–79°F (22–26°C)
BeginnerVietnamese Cardinal Minnow
Tanichthys micagemmae
- Adult size
- ≤ 1.2" (≤ 3 cm)
- Aquarium size
- 11 US gal (41 L) or larger / ≥ 17.7" (≥ 45 cm) minimum length
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 64–73°F (18–23°C)
Beginner – IntermediateVogelkop Blue Eye Rainbowfish
Pseudomugil reticulatus
- Adult size
- ≤ 1.4" (≤ 3.5 cm)
- Temperament
- Peaceful
- Zone
- Middle swimmer
- Temp
- 72–81°F (22–27°C)
Beginner – IntermediateWapoga Rainbowfish
Chilatherina alleni
- Adult size
- ≤ 3.1" (≤ 8 cm)
- Aquarium size
- 53 US gal (200 L) or larger / ≥ 39.4" (≥ 100 cm) minimum length
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 75–86°F (24–30°C)
Beginner – IntermediateWeather Loach
Misgurnus anguillicaudatus
- Adult size
- ≤ 11.8" (≤ 30 cm)
- Aquarium size
- 64 US gal (243 L) or larger / ≥ 47.2" (≥ 120 cm) minimum length
- Temperament
- Peaceful
- Zone
- Bottom dweller
- Temp
- 50–77°F (10–25°C)
Beginner – IntermediateWest Papua Rainbowfish
Melanotaenia fasinensis
- Adult size
- ≤ 4.7" (≤ 12 cm)
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 79–86°F (26–30°C)