Can you tell me what kind of growth this is.
This is in my overflow and I have found a few in the sump like between a rock and the glass, so all seem to be low flow and places where no one can eat them? The over flow got about a dozen on both sides....
The one pictured is about 1/4" long rest are smaller....
I can clean them out at next water change by scrapping them off and draining my overflows?
But not sure if I should let it go and see what grows???