What a Great heads up, we’re upgrading to 125 long, will keep full circle in the rockwork.I had this discussion yesterday with someone, I think extra 2 feet of swimming, especially for a large fish like Yellow or Powder, makes a huge difference. I had a 220, 30in tall and I had rockwork on the back wall. I downgraded to 125 and it added 6 more inches of length to the tank. I moved everything out of the back wall, tangs can now swim in a complete circle around the rocks. It made such a huge difference for them. Everyone is commenting on how happy they look. Additionally, so many tangs on a small aquarium, it's like asking for a blood bath. I have two fish in my 125 right now, just now, and they are still competing for space. They are not overly aggressive, but spikes are always pointing at each other.
Thanks, your tank looks beautiful
Debra