Personally , I find just leaving the frags and seeing what they do to be pretty amazing.
Please excuse the stressed coral.
This was a single stick I mounted horizontally.
An a 1/4 in nub I minted strait up. It's now platung.
Exactly. Stay the course - keep doing the things that you're doing and give the animals a chance to adapt. The others are doing fine, so there's no reason to thnk the Stylo won't turn around. I think you'll be pleasantly surprised at the resiliency of these critters when given half a chance.
DJ