I have used the miracle mud before. I had an EcoSystem setup on my first reef. Worked well, but worked even better with a skimmer.
I eventually realized that it was all of the critters and the caulerpa algae that i used with the system that made the tank so successful. The Miracle Mud part of it was an overpriced gimmick in my opinion.
my teacher at school miss _________ used it and didnt like it so she gave it to me and i didnt like it either just as in the case above promoted algea growth