Triggers and Brittle Stars dont mix

[bubblepuffer]

I think it's depend on which Triggers fish you got. Some is very super aggresive. The red tooth is fine and they are friendly. Last time I got another kind of trigger and end up returning it after a month.. that fish chase any small or big fish from one end of the tank to the other end and bite their tail and fins. Even my Porcupine double the size of it, hiding inside the cave when he/she saw the tigger fish coming out hunting for thing.