I have two percula clownfish that I have had for about a year and a few months now and was wondering how I can check if they are a pair. One is a great bit larger than the other and the small one twitches for the dominance thing. They seem to get along well and always stay near each other. They have not bred yet and I was also wondering if I should something that will help them out.(like something to put in the tank) I am new to this and I apologize for asking very basic questions. Thanks,
Keith

