I used to have a Beta in my 10G tank with Black Skirts, Sepre Tetras, Zebra Danios, Cherry Barbs, White Clouds, and Striped Raphaels. They all were friends for a long time.
When I set up this new 29G tank, I had a beautiful Beta with the Tiger Barbs. Those friggin tigers wouldnt leave him alone. Several days later, the Beta was found at his final resting place - the intake filter.
Thunder