yes. but in general there were only 2. I F-Aipt'd it 4 months ago and it was gone but then came back as 4. Reality is you will get aiptasia through corals. It's just what you wish to do to get rid of them. It's not yet worth Berg's but that's how I will get rid of them in the end.Do you think the aiptasia came from the TBS rock? looks like do did not add anything else...
I have used it in the past, thinking of seeding the tank with some rubble.