Not sure how long its been hiding here

[creativeballance]

Saw these a couple weeks ago. They were on a piece of rock that was mostly buried in sand. They look like they're growing. 2 weeks ago they were just little brown circles.

 

[WVNed]

Ball anemones. I have a bunch. They are considered neutral and seem to do no harm.

 

[creativeballance]

I had some suspicion they could be that. Thank you!

 

[WVNed]

You are welcome

 

[tbrown]

Ball anemones. I have a bunch. They are considered neutral and seem to do no harm.

I like them but they can spread like crazy and will readily attach to your glass.

 

[WVNed]

I have had a few many times in tanks. The ones I have now are reproducing making little colonies.