Advice? Pavona Coral

The chunk where the blue arrow is shows the frag size when I got it. This pics from a couple months ago and it has spread out about another 2 inches in every direction. Is there a way I can encourage this to grow upwards into the cactus type shapes of pavona usually seen and slow its encrusting. I'd bet reducing light might help but that's not an option. I probably should have placed it lower in the tank so it would grow up rather than out and down, but now's too late. My other option is to start putting small rocks around it and start cutting off frags as it encrusts.

 

Could be. It was sold to me as a pavona but I dont know. Here's a close up with the polyps retracted after I tapped it with some forceps. The pattern looks more pavona to me than the pics I see of psammocora. Uncertain. It's encrusting behavior would suggest psammocora though. Either way its growing like GSP haha.

 

I measured the par with that before and it matches around what my Seneye par meter says now. It's around 400 par where the pavona is placed. I have to keep it that high because I have other high par SPS I need to get that light. I guess I could put some paper or something up to block a couple of the LEDs that focus on the pavona's area.

 

I'll probably have some frags of this in about a month. I placed plugs I topped with epoxy putty for shaping all around the base of its growth. If it goes down unchecked its going to meet my spongodes and I don't know if that will be pretty.