- Joined
- Jul 19, 2018
- Messages
- 128
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Hello everyone,
I've noticed these on some corals, in my sump, and on the filtere in my QT tank and I am curious what they are. Are they harmful? Should I make an effort to get rid of them?
Thanks in advance.
I've noticed these on some corals, in my sump, and on the filtere in my QT tank and I am curious what they are. Are they harmful? Should I make an effort to get rid of them?
Thanks in advance.

