I have a 90 gallon tank that I let fall into disarray when my son was born and I'm finally getting it going again. It currently has 2 tiger barbs, a yoyo loach, and a rainbow shark. I was thinking about adding a few more yoyo loaches so that the existing yoyo has some friends to hang out with and getting a combination of odessa barbs and tiger barbs (for the existing barbs). However, I kinda wanted to get another fish that would be the only one of it's kind (my wife is especially attached to the rainbow shark due to the brilliant coloration on its fins as well as it being unique in the tank).
Any thoughts?
Any thoughts?