If it’s in your gulf rock. Some people say it’s a nem. Let me see if I can find it on a website
Edit. Here ya go. Lightbulb nem.
Ive seen couple of places online reporting that the Light Bulb Anemone comes from Gulf waters. Reports along the Florida and TX coast. I have recently ordered 20 LBs of LR from Gulf Live Rock. The owner Dan claims what I have is a lightbulb anemone. Im posting Screen shots of what I found online...
www.reef2reef.com
Still ugly but just to let you know what they are.
Hitchhiker anemone ID- Tampa Bay Saltwater live rock. Anemones & Clownfish
www.reefcentral.com
I thought they were adiaptsia back in the day too.