OP, I had to deal with black bugs a while back. They can be beaten and are not as big of a deal as some people make them out to be. I treated them like red bugs and did several dips with Ivermectin. Ivermectin is very similar to Interceptor, its a liquid form of animal de wormer, Interceptor is a pill form. You will need to get it from an animal Vet. It will take several dips over several weeks to break the life cycle of the bugs. I have heard that Bayer dips will work as well, stuff kills everything, but I have no experience with Bayer as a coral pest dip. I can say Ivermectin works on AEFW, red bugs and black bugs for a fact since I have hands on experience. I would speculate it would also work on MEN as well. I had to call a few local Vets and finally found an exotic animal Vet that was willing to help when I had red bugs. I needed to bring an infected coral frag as the patient. I got to check the little pests out under a microscope eating my frag. What was super cool is the Vet asked if he could send the frag to a colleague at the Monetary Bay Aquarium for research on the pest. Of coarse I let him have the frag in the name of science. Hope this was helpful, keep us posted and good luck.