So, I have had mine for about 6 weeks. He's in with two dwarf angels, a tang, a 6 line wrasse, a sand goby, a neon goby, and a small clown goby... No signs of aggression, yet.
He is very secretive though, prefering to stay in a section of the tank were I basicly have a bunch of 3-4" pieces of LR rubble piled up.
Very pretty fish, one of my favorites!