I have just bought a six line wrasse and I think it is a great addition. I have done some research before purchasing and my understanding is that it is a peaceful fish. Although it might feed on unwanted pests on the LRs, I am not aware it is aggressive to inverts such as shrimps and other fish. However, my friend tells me otherwise. He thinks the six line will make meals out of my shrimps and is recommending me to return it. Has anyone had any experience with the six line?