white specs on back of tank?

[lewi8fire]

These thing have started showing up. they look like a small swirl.
any thoughts?

 

[AMDPhenomX4]

Mini feather dusters. My 180 has thousands.

 

[jcmelski]

my 29 BC and 110 have them also.

 

[Sadielynn]

spiorb (SP) worms come and go as nutrients allow ... They are a sign of higher nutrients , common in newer tanks Generally harmless

 

[lewi8fire]

thanks for all the input