low light? That's great I have plenty of that. Hey btw, where do you keep your tubbs? I'm trying to find a good spot for my 3 polyp frag. I tried the bottom and they weren't very happy, now they are middle and doing so so, at least the diamond goby is not dropping sand all over them anymore. Maybe I'll move them up tomorrow, I can never seem to get all three polyps open at the same time.