Updated 11/26/15, 12/27/15
Experimental tank from a glass vase that’s oblong, wide at the center but very narrow from the sides, tapering toward the top and bottom. Capacity is approximately 1.5 gallons. It’s been running for a couple of months and entering the diatom stage. This is a departure from my other tanks with a coral mound on one end a large open gravel substrate for grazing. I had originally used a layer of small coral chips in place of the gravel, but I found that the opae are able to burrow through the tiny gaps and access the undergravel subterranean chamber.