White circles on glass

[4tanks]

Hi I have these white spots circles on the back glass of tanks I believe they maybe snail eggs is this correct I have 2 Mexicans and 2 tigers conch altho the tigers never go on the glass thanks in advance

 

[Ron Reefman]

Pics are just way too small to be able to tell you anything.

 

[4tanks]

Impossible to get a close up pic they are white spiral shape like a shell that's all

 

[Mike N]

Sounds like spirorbid worms

 

[4tanks]

Yes looks exactly like that anything to worry about shall I leave them.

 

[Mike N]

Yes looks exactly like that anything to worry about shall I leave them.

Nothing to worry about, just harmless filter feeders. Scrape them off if you think they're ugly.

 

[Gernader]

It’s a good sign of biodiversity in your tank. It doesn’t matter if you remove or leave them.

 

[4tanks]

Think leave them thanks guys