dogfood
Fish Fanatic
Have you guys ever watched those shows where you see animals of different kinds on tv that aren't supposed to live to together in harmony do just that? Example cats playing and sleeping with dogs, chickens, etc. I think fish are kinda similar. Sometimes if you put fish together when they are young, they'll learn to to adapt to the other fish that otherwise aren't compatible as adults. I'm not for or against putting goldfish together with bettas, but I just wanted to share that observation that may be of interest.