patrickstar
Aquarium Advice Apprentice
- Joined
- Jan 20, 2013
- Messages
- 38
I have found these white swirl things all over my live rock. What is it and is it good or bad to have?
They are harmless filter feeders that may actually serve as food for some fish depending on your stock. If your tank is kept in great condition you may see the continue to breed, even if your fish are eating them.