I have been seeing these egg sacks daily for weeks lately. They adhere to the glass well and only do what you see in the picture in high flow areas. I have trochus, astraea, limpet, nassarius, cerith in the tank. Looking up eggs matching these inverts look nothing like these I see on my glass. Anyone?
Mystery solved. I have tiny baby trochus someone gave me, I saw another thread on here about a guy with a similar situation. He caught the baby's making more eggs.
