Mark,
HOW did you get that to look like it is floating?? All of the others I have seen you can tell they have PVC in them holding them up. That is such a cool look! I am setting one up, and I would love to get it to look like it is floating, rather than just sitting on PVC.
also, you mentioned it has a skimmerless refugium, did you not run a skimmer on that tank at all? I am looking to set up a similar tank, with a ray, and I have a sump with skimmer in it, and I will be adding the refugium. Just looking to get some advice from someone who has done this particular setup before.
Jessi