I had a yellow pseudochromis about 1 1/2 yrs ago (got hid of it) that was awesome in the bristleworm department, large and small worms ,but also ate my nassarius snails and shrimp
Left the larger snails alone, go figure. Bad ass fish, very pretty and fast, but nasty. If you don't have any ornamental shrimp you may be ok with this one. Left fish alone, but anything slower than him was lunch!!!
And get this... they say it is reef safe....monitor with shrimp. This taught me the true meaning of monitor with shrimp!!!