HomeCompare fishTiger loach vs Coolie loach Tiger loach vs Coolie loach: can they live together? Verdict: Not recommendedThe Tiger loach is best kept in a species tank.The Tiger loach is aggressive towards other fish.The Tiger loach grows about twice as long as the Coolie loach; watch for bullying or predation.Both are comfortable at 25–30°C (77–86°F).A pH of 6.5 suits both.Side by sideTiger loachCoolie loachAdult size21 cm (8.3 in)10 cm (3.9 in)Minimum tank210 L (55 US gal)40 L (11 US gal)Temperature25–30°C (77–86°F)24–30°C (75–86°F)pH6.5–7.05.5–6.5Hardness6–12 dGH (107–214 ppm)–TemperamentAggressivePeacefulCommunity tankNot suitableGoodDietOmnivoreOmnivoreSpecies profilesTiger loachSyncrossus hymenophysaCoolie loachPangio kuhlii