I currently house a solo jag in a 90 gallon with all sorts of pots, rocks, wood, plastic plants. No matter where I place everything, she arranges the tank exactly the same way every time, down to the hills in the sand. It's quite funny actually.....I've tried to force my will and way on this fish, but everyday we go to her tank and she has it all arranged, exactly the same way....
She's only been in this tank for a bit less than a week too.....but she obviously knows how she likes it
That's pretty funny and impressive lol. I'd just leave it be. Too bad you couldn't set up a camera in the distance after a water change and capture her doing it a couple different times. I think it'd be interesting to see if she moves everything in the same order and the same time every time.