I know their not REALLY mobile, but I have a mixed colony of zoas that seem to be fleeing the plug they have been happily growing on for the past year. Is it possible that over-crowding has caused them to separate?
They're zoas. It started as a mixed colony of perhaps 12 polyps. Over the past year, it has grown to many dozens. Individually, they look today exactly as they have looked for more than a year now... But, collectively, they seem to be fleeing the scene.
I finally found these pics of my traveling zoa's. As you can see there's a rather large gap between the lr and the wall. I have no idea how they did it but they did. Same with the lr next to em, did the stretch too.
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