Gouramis & bettas

52 freshwater aquarium species in the gouramis & bettas group, including Badis, Ceylonese combtail and Chocolate gourami. 20 have a full care profile with tank size, temperature, pH and temperament, compared in the table below.

Gouramis & bettas care compared

Species	Adult size	Min. tank	Temperature	pH	Temperament	Care
BadisBadis badis	8 cm (3.1 in)	75 L (20 US gal)	23–26°C (73–79°F)	6.0–8.0	Semi-aggressive	–
Ceylonese combtailBelontia signata	18 cm (7.1 in)	210 L (55 US gal)	23–27°C (73–81°F)	6.0–7.5	Aggressive	Easy
Chocolate gouramiSphaerichthys osphromenoides	7 cm (2.8 in)	75 L (20 US gal)	26–31°C (79–88°F)	4.0–6.0	Semi-aggressive	Difficult
Crescent bettaBetta imbellis	6 cm (2.4 in)	40 L (11 US gal)	24–30°C (75–86°F)	6.0–7.0	Peaceful	Easy
Croaking gouramiTrichopsis vittata	7.6 cm (3 in)	75 L (20 US gal)	22–28°C (72–82°F)	6.0–8.0	Semi-aggressive	Moderate
Giant gouramiOsphronemus goramy	70 cm (28 in)	475 L (125 US gal)	20–30°C (68–86°F)	6.5–8.0	Aggressive	Easy
Moonlight gouramiTrichogaster microlepis	13 cm (5.1 in)	110 L (29 US gal)	25–30°C (77–86°F)	6.0–8.0	Aggressive	Easy
Ornate ctenopomaMicroctenopoma ansorgii	8 cm (3.1 in)	115 L (30 US gal)	25–28°C (77–82°F)	6.0–8.0	Aggressive	Easy
Pygmy gouramiTrichopsis pumila	4 cm (1.6 in)	40 L (11 US gal)	25–28°C (77–82°F)	6.0–7.0	Peaceful	Easy
Roundtail paradisefishMacropodus opercularis	7 cm (2.8 in)	115 L (30 US gal)	16–26°C (61–79°F)	6.0–8.0	Semi-aggressive	Easy
Siamese fighting fishBetta splendens	6.5 cm (2.6 in)	20 L (5 US gal)	24–30°C (75–86°F)	6.0–8.0	Semi-aggressive	Easy
Slim bettaBetta bellica	10 cm (3.9 in)	75 L (20 US gal)	24–30°C (75–86°F)	6.5–7.5	Semi-aggressive	Easy
Snakeskin gouramiTrichogaster pectoralis	25 cm (9.8 in)	210 L (55 US gal)	23–28°C (73–82°F)	6.0–8.3	Aggressive	Easy
Spotted bettaBetta picta	6 cm (2.4 in)	20 L (5 US gal)	22–24°C (72–75°F)	6.5–7.5	Peaceful	Easy
Spotted ctenopomaCtenopoma acutirostre	15 cm (5.9 in)	210 L (55 US gal)	5–25°C (41–77°F)	6.0–8.0	Aggressive	Easy
Betta albimarginata	5 cm (2 in)	20 L (5 US gal)	22–26°C (72–79°F)	6.0–7.5	Peaceful	Easy
Betta coccina	5.6 cm (2.2 in)	20 L (5 US gal)	24–27°C (75–81°F)	4.0–6.0	Semi-aggressive	Difficult
Betta raja	6.5 cm (2.6 in)	20 L (5 US gal)	24–30°C (75–86°F)	5.5–7.0	Peaceful	Easy
Luciocephalus aura	10.5 cm (4.1 in)	115 L (30 US gal)	23–26°C (73–79°F)	5.5–6.0	Semi-aggressive	–
Pseudosphromenus dayi	55 cm (22 in)	75 L (20 US gal)	25–28°C (77–82°F)	6.5–7.5	Aggressive	Easy

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