Let me ask, in that two year time its been running, how many things have you changed in terms of lighting, equipment, salt, etc? My tank is almost two years now and it looks nothing like this I blame it on a number of things (dealt with pests, changed lighting several times, changed salt mix several times, had dosing troubles, removed my sand bed, and the list goes on) My goal now is to just leave it alone for once
No change in lighting. It has been running mixture of T5, halide and led since beginning. Have gradually increased flow as the corals have grown. I have taken the sand out once and added back some when I did not like the look. I have switched from dosing calcium, carbonate and mag to calcium reactor back to dosing. That is all I can recall.