I personally wouldn't get uaru unless your buying a shoal of them and you've not got the space for them and the geos in the long run , so for me it's have to be four of one speices
Ok this idea popped into my head (probably pretty stupid) maybe remove the two angles remove 2 geos remove the Uaru.. And maybe... Just maybe a baby Juru or Tig until it gets big enough to eat everything I read that that have a slow growth rate about 1" per 2 months??