Np.
One more tip. If you want Euphelia to open up. Stop changing your lighting (if you do). They will adapt slowly to almost any light (except No light).
My Euphylea used to be in MH LIghting 150W x 2 and 4 T5's, palce at the TOP under intense light and they did amazing. (as seen below from Photo years ago)
Grew so much I had to trim them running out of space. Made a few bucks trading them in for store credit.
I didn't feed them anything like some people recommend. (Sure they got some nutrients from fish poo)
Euphyllia eat light, and make their own food from the light. Cut back the Poly Lab booster before you get many other problems from poluting your tank.
Water quality needs to be decent but not perfect. Stable water parameters is important, like all corals.
Then one day I switched to LED/T5, removing the MH lights and it took ages (year++) for them to adjust.
Of course, they never grew as much under LED lighting.
I miss those days.
It's always best to give them less light at the start. The less light they get, the more they will open up to get more light.
Too much light can burn them and that can kill them, or have them receed for ages.
Adjusting light schedule drives them nuts.
You will notice that they will open up just before light come on and close just before lights go off. They get into a lighting cycle (like human bio-rythm for sleeping).