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|  Yellow Tang A Kole Tang would be better in a 90 gal but if you really love Yellow Tangs, put one in last as it might not allow any other tangs (and maybe other fish) in your tank - my experience.  My yellow tang killed my Kole and my Hippo. I have read that yellow tangs need a MINIMUM of 100 gal. which is maybe why they are so aggressive in smaller tanks. AquaAddict Last edited by AquaAddict; 02-03-2016 at 03:53 AM. |