Facts are facts. PAR per watt barely puts LEDs ahead...
Your whole post is spot on, but I wanted to highlight this part in case future readers missed it.If you went from 500w of halides to 200w of LEDs, you were either severely over lighting your tank or you are now severely under lighting it. That's just a fact. You may not see it today or next month but you will see it down the road.
So much misinformation/disinformation being put out regarding halides.!