I recently found a 150 gallon aquarium on eBay for $170, so I decided to pick it up. It’s been set up for about 3 weeks now and I think it’s time to add some fish, I’m just not sure what. I was looking to have a somewhat nonaggressive tank with a centerpiece fish (Oscar, flowerhorn, giant gourami, etc.). I would appreciate ideas of any kind so I can fill up this tank! Thanks in advance.