Ron Reefman
Active member
If by move, you mean move from one spot to another and not just move back and forth in the flow, then I'd say you have some kind of an anemone. There are some rock flower anemones that have intricate tentacles like that. And they do start life quite small. I have 2 adults that mated and now there are 5 very tiny baby anemones on the near by rocks.