I leave my lighting on for 12 hours a day for my nems. Do you have it in the bio cube listed for your tanks? How big is the nem? PC are usually not sufficent lights for a nem long term. Make sure you feed him in addition to the light. Also... Dont put a nem in your tank if its only been up a few weeks. IMOWhat kind of lighting schedule would a flower anemone need?
My nems close up when the lights are off as well. Nems feed from the lights, and the PC in a bio cube may not be enough. Your LFS guy was not honest with you when he said it should be alright. They require high lighting and good water quality of an established tank. Here is some info..Yeah it's in my biocube... I have a real honest LFS and the guy said it should do alright, but all nems are iffy in a BC. It's only about 4 inches when open and he said it wouldn't get to big.
How closed up is it supposed to be when the lights are off?
It was pretty open when I was transporting him, but I put it in the tank and he kind of scrunched up after attaching to a rock. The lights aren't completely on right now though, so none of my corals are that open either.
Why does everybody think nem's can't survive off BC lights? The LFS I got it from has a new nem in their 29g biocube almost every two weeks, and there always doing fine. And the 29 gal. has a worse ratio of watts per gal. than my 14g. Here are some other people with nem's in a 14g... no adjustments :