|Canon Rebel Xti, Canon EF-S 18-55mm f3.5 - 5.6|
I was able to get a picture of my star polyp colony when the polyps are retracted. Hopefully, you can see how the colony is growing upwards.
This picture was taken on a tripod with only the moon LEDs lit. It does take a while for the polyps to come out after the lights turn on so I could have taken a "day" picture. I just felt like taking a night picture.