Quote:
Originally Posted by Hangfire
I'm not sure what this is - and the picture isn't that great as the 'sponge' is growing away from the front of the tank. The tubes at the top sometimes appear to inflate and deflate at different times. I never new just how aptly named "live" rock is. I don't even have fish yet and the tank keeps me occupied for hours  |
Could be a sponge, hard to say from the picture. Could also be a tunicate.