Types of bettas and gouramis

14 bettas and gouramis compared at one scale: adult size, the tank they need, temperature and group size.

Betta

Scroll sideways to see them all. All drawn at one scale, adult size: = 1 inch. Tap one to open its care page.

Betta

Semi-aggressive · Top · easy care

3 in adult
5+ gal
76–82 °F
pH 6 to 7.5
one male per tank

Honey gourami

Peaceful · Top · easy care

2 in adult
10+ gal
72–82 °F
pH 6 to 7.5
alone or pair

Dwarf gourami

Peaceful · Top · moderate care

3.5 in adult
10+ gal
77–82 °F
pH 6 to 7.5
one male per tank

Pearl gourami

Peaceful · Top · easy care

4.5 in adult
29+ gal
77–82 °F
pH 6 to 7.5
alone or pair

Banded gourami

Peaceful · Top · easy care

4 in adult
30+ gal
72–82 °F
pH 6 to 8
alone or pair

Chocolate gourami

Peaceful · Middle · demanding care

2.4 in adult
20+ gal
77–81 °F
pH 5 to 6.5
alone or pair

Croaking gourami

Peaceful · Top · moderate care

2.8 in adult
15+ gal
72–82 °F
pH 6 to 7.5
groups of 3+

Giant gourami

Semi-aggressive · Middle · easy care

18 in adult
300+ gal
72–86 °F
pH 6.5 to 8
alone or pair

Kissing gourami

Semi-aggressive · Middle · easy care

12 in adult
75+ gal
72–82 °F
pH 6.8 to 8.5
alone or pair

Moonlight gourami

Peaceful · Top · easy care

5 in adult
30+ gal
77–84 °F
pH 6 to 7.5
one male per tank

Paradise fish

Semi-aggressive · Top · easy care

3.5 in adult
20+ gal
61–79 °F
pH 6 to 8
one male per tank

Sparkling gourami

Peaceful · Top · moderate care

1.6 in adult
10+ gal
76–82 °F
pH 6 to 7.5
alone or pair

Thick-lipped gourami

Peaceful · Top · easy care

3.5 in adult
20+ gal
72–82 °F
pH 6 to 7.5
alone or pair

Three-spot (blue) gourami

Semi-aggressive · Top · easy care

6 in adult
29+ gal
72–82 °F
pH 6 to 8
one male per tank

Other fish families

Types of plecos Types of aquarium shrimp Types of aquarium snails Types of tetras Types of rasboras and danios Types of barbs Types of livebearers Types of cichlids Types of catfish Types of loaches Types of freshwater sharks Types of rainbowfish Types of killifish Types of puffers Types of goldfish Types of oddball fish Types of shrimp, snails, frogs and axolotls All fish

Names, and adult sizes where the article gives one, are checked against Wikipedia; care ranges are common hobby guidance, and each species page says which is which. 14 of these 14 are fish. Photos are real photographs from Wikimedia Commons, credited below; the lineup is our own drawing at one scale.

Photo credits

Real photographs from Wikimedia Commons, resized and cropped to fit; each is used under the license named.

Betta ivabalk (Pixabay), CC0, via Wikimedia Commons
Honey gourami Antoon Dommerholt (Dutch Wikipedia), CC BY-SA 3.0, via Wikimedia Commons
Dwarf gourami Quatermass (English Wikipedia), Public domain, via Wikimedia Commons
Pearl gourami h080, CC BY-SA 2.0, via Wikimedia Commons
Banded gourami Sandipan Das, CC BY 4.0, via Wikimedia Commons
Chocolate gourami OSt DD, CC BY-SA 3.0, via Wikimedia Commons
Croaking gourami Howard Jelks, U.S. Geological Survey, Public domain, via Wikimedia Commons
Giant gourami George Chernilevsky, Public domain, via Wikimedia Commons
Kissing gourami 5snake5, CC BY-SA 4.0, via Wikimedia Commons
Moonlight gourami H. Zell, CC BY-SA 3.0, via Wikimedia Commons
Paradise fish André Karwath; edited by Muhammad, CC BY-SA 2.5, via Wikimedia Commons
Sparkling gourami BEDO (Thailand), CC BY-SA 4.0, via Wikimedia Commons
Thick-lipped gourami Oliver Gorski, CC BY-SA 3.0, via Wikimedia Commons
Three-spot (blue) gourami Peter Jung, CC BY-SA 3.0, via Wikimedia Commons