I have two Prime HD's running on my 4ft 55gal mixed reef. (SPS towards the top, LPS mid, and softies on bottom) My question is whether or not this is enough lighting. Everything seems to be doing fine, but I was just wanting to get some second opinions. (I have been running it this way for a year) I am open to getting new lighting at this point, and I want to know what people would recommend. I have looked at some T5 fixtures, but I do like the idea of LEDs.