BTW goniopora have a near 100% death rate long term. So do alovipora . Usually they last 1-2 years then one day it not fully expanded. It turns into a slow death like starvation. All this is in a closed loop system.
I would say that the “it’s impossible to have success with gonis long term” is an outdated viewpoint. It certainly was the case back in the day but now several strains are even being aquacultured and those things are fairly hardy.

