Schooling freshwater fish: R

All schooling freshwater fish whose common name starts with R, in alphabetical order. Each card links to its care guide.

50 species and 1 variety

• 

  Railway barb

  Acrossocheilus fasciatus

  Freshwater
  7.5 in (19 cm) · 79 gal (300 L)61–75°F (16–24°C)

• 

  Rainbow bitterling

  Acheilognathus macropterus

  Freshwater
  10.6 in (27 cm) · 106 gal (400 L)57–79°F (14–26°C)

• 

  Rainbow emperor tetra

  Nematobrycon lacortei

  Freshwater
  2 in (5 cm) · 20 gal (75 L)73–81°F (23–27°C)

• 

  Rainbow gudgeon

  Sarcocheilichthys nigripinnis

  Freshwater
  6.3 in (16 cm) · 53 gal (200 L)57–75°F (14–24°C)

• 

  Rainbow shiner

  Notropis chrosomus

  Freshwater
  3.1 in (8 cm) · 20 gal (75 L)50–72°F (10–22°C)

• 

  Rakhine danio

  Devario xyrops

  Freshwater
  3.7 in (9.5 cm) · 29 gal (110 L)68–79°F (20–26°C)

• 

  Red devil tetra

  Hyphessobrycon piranga

  Freshwater
  1 in (2.5 cm) · 10 gal (38 L)73–82°F (23–28°C)

• 

  Red dwarf rasbora

  Microrasbora rubescens

  Freshwater
  1.2 in (3 cm) · 12 gal (45 L)68–77°F (20–25°C)

• 

  Red eye tetra

  Moenkhausia sanctaefilomenae

  Freshwater
  2.8 in (7 cm) · 28 gal (105 L)72–79°F (22–26°C)

• 

  Red flush tetra

  Hemigrammus stictus

  Freshwater
  2 in (5 cm) · 20 gal (75 L)73–82°F (23–28°C)

• 

  Red neon blue-eye

  Pseudomugil luminatus

  Freshwater
  1.4 in (3.5 cm) · 11 gal (40 L)72–81°F (22–27°C)

• 

  Red phantom tetra

  Hyphessobrycon sweglesi

  Freshwater
  1.6 in (4 cm) · 15 gal (55 L)72–82°F (22–28°C)

• 

  Red rainbowfish

  Glossolepis incisus

  Freshwater
  5.5 in (14 cm) · 34 gal (130 L)72–77°F (22–25°C)
• Red-back moon tetra

  Bathyaethiops flammeus

  Freshwater
  2 in (5 cm) · 24 gal (90 L)73–81°F (23–27°C)

• 

  Red-bellied piranha

  Pygocentrus nattereri

  Freshwater
  12.6 in (32 cm) · 160 gal (605 L)75–82°F (24–28°C)

• 

  Red-striped rainbowfish

  Melanotaenia rubrostriata

  Freshwater
  5.1 in (13 cm) · 53 gal (200 L)77–86°F (25–30°C)

• 

  Red-striped rasbora

  Trigonopoma pauciperforatum

  Freshwater
  2.8 in (7 cm) · 22 gal (85 L)72–79°F (22–26°C)
• Red-tail bitterling

  Acheilognathus tonkinensis

  Freshwater
  4.7 in (12 cm) · 40 gal (150 L)61–79°F (16–26°C)

• 

  Red-tail brycinus

  Brycinus macrolepidotus

  Freshwater
  20.9 in (53 cm) · 264 gal (1,000 L)73–82°F (23–28°C)
• Red-tail silver shark

  Hypselobarbus kurali

  Freshwater
  13.8 in (35 cm) · 211 gal (800 L)72–82°F (22–28°C)

• 

  Red-tailed rasbora

  Rasbora borapetensis

  Freshwater
  2.4 in (6 cm) · 18 gal (70 L)72–79°F (22–26°C)

• 

  Red-tailed tinfoil barb

  Barbonymus altus

  Freshwater
  9.8 in (25 cm) · 106 gal (400 L)72–82°F (22–28°C)

• 

  Redback rasbora

  Rasbora rubrodorsalis

  Freshwater
  1.6 in (4 cm) · 14 gal (54 L)72–81°F (22–27°C)

• 

  Redcheek barb

  Discherodontus ashmeadi

  Freshwater
  5.4 in (13.6 cm) · 42 gal (160 L)72–81°F (22–27°C)

• 

  Redfin tiger loach

  Syncrossus berdmorei

  Freshwater
  9.4 in (24 cm) · 50 gal (190 L)70–79°F (21–26°C)

• 

  Redhook

  Myloplus rubripinnis

  Freshwater
  9.8 in (25 cm) · 70 gal (265 L)73–81°F (23–27°C)

• 

  Redline torpedo barb

  Sahyadria denisonii

  Freshwater
  4.3 in (11 cm) · 53 gal (200 L)59–77°F (15–25°C)

• 

  Redlip barb

  Pethia erythromycter

  Freshwater
  1.6 in (4 cm) · 14 gal (54 L)72–79°F (22–26°C)

• 

  Redstripe hemigrammus

  Hemigrammus rubrostriatus

  Freshwater
  2.4 in (6 cm) · 20 gal (75 L)73–82°F (23–28°C)

• 

  Redtail loach

  Yasuhikotakia modesta

  Freshwater
  9.8 in (25 cm) · 75 gal (285 L)73–82°F (23–28°C)

• 

  Reticulated cory

  Brochis reticulata

  Freshwater
  2.4 in (6 cm) · 20 gal (75 L)72–79°F (22–26°C)

• 

  Reynolds's cory

  Hoplisoma reynoldsi

  Freshwater
  1.4 in (3.5 cm) · 12 gal (45 L)72–79°F (22–26°C)

• 

  Robust cory

  Brochis robusta

  Freshwater
  3.1 in (8 cm) · 40 gal (150 L)72–79°F (22–26°C)

• 

  Robustulus tetra

  Hyphessobrycon robustulus

  Freshwater
  1.7 in (4.4 cm) · 16 gal (60 L)70–81°F (21–27°C)

• 

  Rohan's barb

  Dawkinsia rohani

  Freshwater
  3.9 in (10 cm) · 42 gal (160 L)70–79°F (21–26°C)

• 

  Roman nose angelfish

  Pterophyllum leopoldi

  Freshwater
  3.9 in (10 cm) · 30 gal (115 L)72–84°F (22–29°C)

• 

  Rose danio

  Danio roseus

  Freshwater
  1.8 in (4.6 cm) · 20 gal (75 L)70–79°F (21–26°C)

• 

  Rose flame glassfish

  Gymnochanda verae

  Freshwater
  1.2 in (3 cm) · 11 gal (40 L)75–82°F (24–28°C)

• 

  Rosy barb

  Pethia conchonius

  Freshwater
  2.8 in (7 cm) · 24 gal (90 L)61–75°F (16–24°C)1 variety

• 

  Rosy loach

  Petruichthys sp. 'rosy'

  Freshwater
  1.2 in (3 cm) · 14 gal (54 L)68–79°F (20–26°C)

• 

  Rosy tetra

  Hyphessobrycon rosaceus

  Freshwater
  1.6 in (4 cm) · 15 gal (55 L)75–82°F (24–28°C)

• 

  Royal tetra

  Inpaichthys kerri

  Freshwater
  1.4 in (3.5 cm) · 15 gal (55 L)75–81°F (24–27°C)

• 

  Ruby moenkhausia

  Moenkhausia rubra

  Freshwater
  2.1 in (5.4 cm) · 20 gal (75 L)73–82°F (23–28°C)

• 

  Ruby sundadanio

  Sundadanio rubellus

  Freshwater
  0.9 in (2.3 cm) · 11 gal (40 L)73–81°F (23–27°C)

• 

  Ruby tetra

  Axelrodia riesei

  Freshwater
  0.8 in (2 cm) · 12 gal (45 L)73–81°F (23–27°C)

• 

  Ruby-tinted barb

  Dawkinsia rubrotincta

  Freshwater
  3.9 in (10 cm) · 42 gal (160 L)70–79°F (21–26°C)

• 

  Rummy-nose tetra

  Hemigrammus rhodostomus

  Freshwater
  2 in (5 cm) · 20 gal (75 L)75–81°F (24–27°C)

• 

  Rummynose tetra

  Petitella bleheri

  Freshwater
  2 in (5 cm) · 20 gal (75 L)75–81°F (24–27°C)

• 

  Rust cory

  Osteogaster rabauti

  Freshwater
  2.4 in (6 cm) · 20 gal (75 L)72–79°F (22–26°C)

• 

  Rutten's rasbora

  Rasbora rutteni

  Freshwater
  2.2 in (5.5 cm) · 20 gal (75 L)73–81°F (23–27°C)