Not sure what these are. Moved the rock and noticed them.
T TORX Administrator Staff member Website Admin Nov 9, 2018 #4 They are good. They can be a nuisance if they start to populate in an overflow, but they are filter feeders and typically self regulate population. They may even vanish on their own after time.
They are good. They can be a nuisance if they start to populate in an overflow, but they are filter feeders and typically self regulate population. They may even vanish on their own after time.
