I agree with the above but would add that the pearl gouramis if kept in a group will be too busy interacting with each other to bother taking any interest in anything else within the tank. A very sociable schooling fish, the males do sometimes get territorial when adults but not to any great extent and the rivalry displays between males is fantastic to watch when they dispute territories.
I have kept and bred this fish for many years and they remain one of my personal favourites, so my answer is biased, conversly I have never kept inverts but I doubt very much that the 'pearls' would take anything but a cursory passing interest in shrimps.
Thanks a lot guys.
Just one more question.
Glod, you said "the amano's steal food off them"
were you meaning that the pearl's steal the amano's food?
Anyways, now my only concern is if my gourami's will steal the amano's algae wafers.