brettmontgomery
Aquarium Advice Apprentice
- Joined
- Mar 12, 2017
- Messages
- 11
Not a coral. That is a sponge.
Oh. I really had to stare at the blown up picture to see that. Does it retract if you go near it? It's hard for me to see if it is a polyp or a type of anemone. Don't know if my eyes are getting old on me or if it's the picture.
Is it retracting directly into the rock? If so it is an aiptasia anemone and will need addressed with a product like aiptasia-x or injecting it with boiling lemon juice.