For all of those out there that believe (for whatever reason) that Opae Ula need to live in dead unfiltered unfed tanks let me prove to you otherwise...
I just completed a partial water change in my original Opae Ula tank. The Bookshelf. It had become quite overgrown with chaeto and other algae. After removing at least two cups of chaeto and doing a 10 percent water change the following showed up:
A settled larvae, eating as the adults do. After a few minutes of close observation another six swam past.