no I haven't kept one before, but I read a ton of stuff on here about them. Majority of people stated they can be kept together and have multiples in their tanks. Even small tanks.
Does your experience tell you otherwise? I believe liveaquaria even says they do better introduced in 3's, but then again, that's liveaquaria.
I know they are more for the advanced reef keepers, but I've been learning a lot about them and want to be prepared before I buy one. Any info/experience you can share with me would help.
Thanks.