I'm not sure I can add anything more than what's already been said. My advice is to use very little. It's easy to get carried away and overfeed. I have used Reef-Roids once a week and have done both; target and broadcast feed. I think most of my corals do ok with it, but I am now dealing with high phosphates and algae. I'm sure it is not 100 percent due to the Reef-Roids, but my careless feeding with it I am sure contributed, at least partly, to what I am dealing with now.
Go slow and less is more in this case. Good luck!