HomeCompare fishRedbelly tilapia vs Spindle hap Redbelly tilapia vs Spindle hap: can they live together? Verdict: Not recommendedThe Spindle hap is aggressive towards other fish.The Redbelly tilapia is best kept in a species tank.The Redbelly tilapia can be semi-aggressive or nip fins.The Redbelly tilapia grows about twice as long as the Spindle hap; watch for bullying or predation.Both are comfortable at 22–27°C (72–81°F).A pH of 7.5–8.0 suits both.Side by sideRedbelly tilapiaSpindle hapAdult size40 cm (16 in)14 cm (5.5 in)Minimum tank475 L (125 US gal)285 L (75 US gal)Temperature11–36°C (52–97°F)22–27°C (72–81°F)pH6.0–9.07.5–8.0Hardness5–20 dGH (89–357 ppm)9–19 dGH (161–339 ppm)TemperamentSemi-aggressiveAggressiveCommunity tankNot suitable–Care levelEasy–DietOmnivoreOmnivoreSpecies profilesRedbelly tilapiaTilapia zilliiSpindle hapProtomelas taeniolatus