HomeCompare fishGreater scissortail vs Blackline rasbora Greater scissortail vs Blackline rasbora: can they live together? Verdict: Not recommendedAn adult Greater scissortail is about 3 times the length of a Blackline rasbora and may eat it.Both are comfortable at 22–26°C (72–79°F).A pH of 6.5–6.8 suits both.Side by sideGreater scissortailBlackline rasboraAdult size15 cm (5.9 in)5 cm (2 in)Minimum tank210 L (55 US gal)115 L (30 US gal)Temperature20–26°C (68–79°F)22–26°C (72–79°F)pH6.0–6.86.5–7.0Hardness9–17 dGH (161–303 ppm)5–12 dGH (89–214 ppm)TemperamentPeacefulPeacefulCommunity tankWith cautionExcellentCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesGreater scissortailRasbora caudimaculataBlackline rasboraRasbora borapetensis