Polka Dot Loach
Botia kubotai
- Adult size
- ≤ 4.7" (≤ 12 cm)
- Aquarium size
- 53 US gal (200 L) or larger / ≥ 47.2" (≥ 120 cm) minimum length
- Temperament
- Semi-Aggressive
- Zone
- Bottom to middle 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.
Polka Dot Synodontis
Synodontis angelicus
- Adult size
- ≤ 9.8" (≤ 25 cm)
- Aquarium size
- 55 US gal (208 L) or larger / ≥ 59.1" (≥ 150 cm) minimum length
- Temperament
- Peaceful
- Zone
- Bottom dweller
- Temp
- 75–82°F (24–28°C)
Polystictus Corydoras
Corydoras polystictus
- Adult size
- ≤ 1.2" (≤ 3 cm)
- Aquarium size
- 21 US gal (80 L) or larger / ≥ 17.7" (≥ 45 cm) minimum length
- Temperament
- Peaceful
- Zone
- Bottom dweller
- Temp
- 72–82°F (22–28°C)
Popondetta Blue Eye Rainbowfish
Pseudomugil connieae
- Adult size
- ≤ 2" (≤ 5 cm)
- Aquarium size
- 15 US gal (55 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length
- Temperament
- Peaceful
- Zone
- Middle swimmer
- Temp
- 73–81°F (23–27°C)
Pretty Tetra
Hemigrammus pulcher
- Adult size
- ≤ 1.8" (≤ 4.5 cm)
- Aquarium size
- 18 US gal (70 L) or larger / ≥ 31.5" (≥ 80 cm) minimum length
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 73–79°F (23–26°C)
Pulcher Corydoras
Brochis pulcher
- Adult size
- ≤ 2.8" (≤ 7 cm)
- Aquarium size
- 20 US gal (76 L) or larger / ≥ 25.6" (≥ 65 cm) minimum length
- Temperament
- Peaceful
- Zone
- Bottom dweller
- Temp
- 72–79°F (22–26°C)
Pulcher Mystus
Mystus pulcher
- Adult size
- ≤ 4.7" (≤ 12 cm)
- Temperament
- Peaceful
- Zone
- Bottom dweller
- Temp
- 73–77°F (23–25°C)
Purple Pencilfish
Nannostomus rubrocaudatus
- Adult size
- ≤ 1.6" (≤ 4 cm)
- Aquarium size
- 17 US gal (64 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 73–81°F (23–27°C)
Purple Sailfin Gudgeon
Microphysogobio tafangensis
- Adult size
- ≤ 3.5" (≤ 9 cm)
- Aquarium size
- 20 US gal (75 L) or larger
- Temperament
- Peaceful
- Zone
- Bottom to middle swimmer
- Temp
- 50–86°F (10–30°C)
Pygmy Corydoras
Gastrodermus pygmaeus
- Adult size
- ≤ 1.2" (≤ 3 cm)
- Aquarium size
- 11 US gal (40 L) or larger / ≥ 17.7" (≥ 45 cm) minimum length
- Temperament
- Peaceful
- Zone
- Bottom dweller
- Temp
- 72–79°F (22–26°C)
Pygmy Hatchetfish
Carnegiella myersi
- Adult size
- ≤ 1" (≤ 2.5 cm)
- Aquarium size
- 13 US gal (50 L) or larger / ≥ 19.7" (≥ 50 cm) minimum length
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 73–79°F (23–26°C)
Pygmy Leopard Catfish
Synodontis petricola
- Adult size
- ≤ 3.9" (≤ 10 cm)
- Aquarium size
- 29 US gal (110 L) or larger / ≥ 31.5" (≥ 80 cm) minimum length
- Temperament
- Peaceful
- Zone
- Middle swimmer
- Temp
- 75–82°F (24–28°C)
Pygmy Swordtail
Xiphophorus pygmaeus
- Adult size
- ≤ 1.6" (≤ 4 cm)
- Aquarium size
- 14 US gal (54 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 72–79°F (22–26°C)
Raccoon Tetra
Hyphessobrycon procyon
- Adult size
- ≤ 2" (≤ 5 cm)
- Aquarium size
- 16 US gal (60 L) or larger / ≥ 31.5" (≥ 80 cm) minimum length
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 73–81°F (23–27°C)
Rainbow Cichlid
Herotilapia multispinosa
- Adult size
- ≤ 6.7" (≤ 17 cm)
- Aquarium size
- 53 US gal (200 L) or larger / ≥ 39.4" (≥ 100 cm) minimum length
- Temperament
- Semi-Aggressive
- Temp
- 72–81°F (22–27°C)
Rainbow Copella Tetra
Copella vilmae
- Adult size
- ≤ 1.8" (≤ 4.5 cm)
- Aquarium size
- 16 US gal (60 L) or larger
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 68–81°F (20–27°C)
Rainbow Lizard Tetra
Iguanodectes geisler
- Adult size
- ≤ 2.2" (≤ 5.5 cm)
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 72–79°F (22–26°C)
Rainbow Shark
Epalzeorhynchos frenatum
- Adult size
- ≤ 5.9" (≤ 15 cm)
- Aquarium size
- 53 US gal (200 L) or larger / ≥ 47.2" (≥ 120 cm) minimum length
- Temperament
- Semi-Aggressive
- Zone
- Bottom dweller
- Temp
- 72–81°F (22–27°C)
Rainbow Shiner
Hydrophlox chrosomus
- Adult size
- ≤ 3.1" (≤ 8 cm)
- Aquarium size
- 26 US gal (100 L) or larger / ≥ 39.4" (≥ 100 cm) minimum length
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 50–73°F (10–23°C)
Rainbow Stiphodon Goby
Stiphodon ornatus
- Adult size
- ≤ 2" (≤ 5 cm)
- Aquarium size
- 18 US gal (70 L) or larger / ≥ 31.5" (≥ 80 cm) minimum length
- Temperament
- Peaceful
- Zone
- Bottom to middle swimmer
- Temp
- 68–82°F (20–28°C)
Rainbow Tetra
Nematobrycon lacortei
- Adult size
- ≤ 1.6" (≤ 4 cm)
- Aquarium size
- 21 US gal (80 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length
- Temperament
- Peaceful
- Zone
- Middle swimmer
- Temp
- 72–79°F (22–26°C)
Ram Cichlid
Mikrogeophagus ramirezi
- Adult size
- ≤ 3.1" (≤ 8 cm)
- Aquarium size
- 14 US gal (54 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length
- Temperament
- Peaceful
- Zone
- Bottom to middle swimmer
- Temp
- 77–84°F (25–29°C)
Red Banded Leporinus
Synaptolaemus latofasciatus
- Adult size
- ≤ 4.7" (≤ 12 cm)
- Aquarium size
- 64 US gal (243 L) or larger / ≥ 47.2" (≥ 120 cm) minimum length
- Temperament
- Peaceful
- Zone
- Bottom to middle swimmer
- Temp
- 75–81°F (24–27°C)
Red Base Tetra
Hemigrammus stictus
- Adult size
- ≤ 1.8" (≤ 4.5 cm)
- Aquarium size
- 18 US gal (70 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length
- Temperament
- Peaceful
- Zone
- Top swimmer
- Temp
- 72–79°F (22–26°C)
