Never had issues like this before. Really starting to think its something with the LED's and kind of want to give MH or CFL a try. I have had at this point 20 + reef tanks from 3 gallons to 300 gallons and have NEVER fought this hard.
Could it be the dry rock start? I feel like it takes a long time for tanks to get stable/mature when started with little biodiversity. I know you added some rubble, but I wonder if that was enough.