HomeCompare fishBadis vs Siamese fighting fish Badis vs Siamese fighting fish: can they live together? Verdict: With cautionThe Siamese fighting fish can be semi-aggressive or nip fins.The Badis can be semi-aggressive or nip fins.Both are comfortable at 24–26°C (75–79°F).A pH of 6.0–8.0 suits both.Minimum tank for the pair: 75 L (20 US gal)Side by sideBadisSiamese fighting fishAdult size8 cm (3.1 in)6.5 cm (2.6 in)Minimum tank75 L (20 US gal)20 L (5 US gal)Temperature23–26°C (73–79°F)24–30°C (75–86°F)pH6.0–8.06.0–8.0Hardness5–19 dGH (89–339 ppm)5–19 dGH (89–339 ppm)TemperamentSemi-aggressiveSemi-aggressiveCommunity tankWith cautionGoodCare level–EasyDietCarnivoreOmnivoreSpecies profilesBadisBadis badisSiamese fighting fishBetta splendens