IMO.
Corals are growing bc of better water quality...so by default the fish are happier bc of the better water quality....not necessarily bc corals are growing is there a direct correlation
True, but if you only keep soft corals alive then your water quality can still be terrible and the soft corals can outlive the fish.
Yes, I would expect them to be more comfortable in a grown out system. Even if the corals are not native to the fish's part of the world.
It just looks more natural with growing things.
I would expect that a lot of reef fish are programmed to search out something beyond a rock or sand desert in nature if a storm pushes them out of their normal habitat.
Not really, but sort of like 'dither' fish make other skittish fish more comfortable.
Like we have transitioned from keeping zoo animals in bare cages to habitats.
It has been over 25 years since I had the chance to visit the San Diego zoo. My figures may be completely off but the ratio should be good.
When we visited they said the animals in the exhibits were estimated at 1 million dollars.
Replacing the plants in the habitats were estimated at 2 to 3 million dollars.