I have a 1/2 black and have had him for about 3 years and is a model citizen, he has been in fowl(2) 200g range with large angels, puffers,triggers,tangs and wrasses with no issues and for the last year or so he has been in my softy mini reef 75g (was a 30g until 1 month ago) his current tank mates include clown fish, fire fish,royal grama,scissor tail dart fish with no issues and the corals are "fleshy type softies" such as colts/leathers seems hardy and well mannered even when in the 30g