One of my zoas seems to be stretching for light need some advice

[Fishbro]

So I have a 23 tall 24 wide and 24 long inch tank and a single radion xr-15 pro running at 45%. I do not have any SPS in this tank just a bunch of LPS and softies. My question is, my SBB Hephaestus zoa seems to be stretching out and reaching for more light and maybe a little bit from other zoas. I’m running LPS AB+ on it and wondering if 45% is not enough par for the tank? All my other corals are doing awesome as well as the Hephaestus zoa it’s growing a few new polyps, but it seems to be stretching out. Any advice? Maybe just move it up higher in the tank? I don’t super want to move it cause I have a rock specifically for the zoas.

 

[WIReefer]

I would rent a par meter to know for sure.

 

[Reefman71]

Same here? I’ve already have another polyp growing though? The rock he’s on gets 90 to 100 PAR. How is yours doing?