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Erica
Chelsea
1. Sinularia
2. Protopalythoa
3. Clavularia
Thomas1044
Thank you!
Bryan1851
Is this a brittle star? Is it a useful thing in an aquarium?
Jeremy
Useful, two pieces will be enough, but they may disturb the softness...
Jacqueline5976
What kind of plant has popped up here? Sorry for the photo quality.
Gene1948
Caulerpa racemosa.
Mariah
I understand that it's better to delete it while there's not much of it?
Brenda
Better to delete.