Hey, I finally found out the size of the 4ft tank (a 260L/70G tank), and I would like an oscar. I heard red-blue colombian tetras can work, but only on 1 page, so I find such info iffy. I don't really want a lone oscar, so what would you recommend? If needed, I'm particularly fond of gourami, cichlids, gudgeons, and rainbowfish. Any suggestions are welcomed! Also, I am aware that it depends on the Oscar's temperment.