- Joined
- Jul 9, 2018
- Messages
- 223
- Reaction score
- 135
My hammer coral has been receded the last week or so. I was looking around to see if I can find any visible reasons why and noticed this on the side of the hammer. Can anyone help identify what it is? Also, what about all the specs or egg liking patch on the side. Is that something I should be concerned with?


