Totally new to reefing and saltwater. I’ve got a fluval flex 32.5 with live rock and sand. I added two clown last weekend. I’m 5 weeks in total. Cycling the last 10 days or so. Levels are very good. I do have a question though. On my live rock from our pet store I found this last night. No idea what it is. Any thoughts or ideas??? Please advise if it’s something I should be concerned about, thank you in advance.




