I already have a 150w DE HQI over my 29 right now, and I have been successfully keeping 2 Acroporas, 4 digitatas, AND A Pocillopora in addition to my softies and Lps for over a year now. Unfortunately, Electricity costs are increasing and I can no longer afford to keep my current lighting or my SPS, hence the reason for this post. I was trying determine what I could keep if I downgraded my lighting. That is why I Said that I only want to keep soft corals and Lps corals . Thanks for posting everyone.