I have a 45 gallon Red Sea tank that has been up and running for a few months now (fully cycled). I want to add fish that will remain smaller, but bring nice color and activity to the tank. I've never had a damselfish other than a clownfish, but I always hear that they are all a**holes. I've read this species is less aggressive, any input is appreciated. Also, I'd like to add three of them, if I chose this species. Any input on that as well is great.