View Full Version : Weird white circles on rocks.

11/05/2014, 07:03 PM
http://s2.postimg.org/hosl7l9ut/IMG_20141105_210017.jpg (http://postimg.org/image/hosl7l9ut/)
Does anyone know what this is. It started showing up this morning.

Sugar Magnolia
11/06/2014, 05:10 AM
Spirorbid worms. Harmless.

11/06/2014, 12:41 PM
The sign of an aging tank.

11/06/2014, 02:26 PM
looks like a new setup :). Don't worry about these things they will self-regulate eventually. Do you have LR with coralline algae? If not I would get one and scrape it under power head to activate CA growth.

One fish
11/06/2014, 04:56 PM
What does scraping in front of a powerhead do?

11/06/2014, 05:00 PM
Spirorbid worms. Harmless.

somehow read that as Spider worms... far from harmless. sounds scary as f

11/06/2014, 06:14 PM
What does scraping in front of a powerhead do?

Spreads the spores.

11/06/2014, 08:34 PM
I have 16lbs of live and 40 lbs of dead rock. The live rock is purple, I think that means shell coralline, as for getting the spores for coralline I found some small rocks covered in it at jacks and they gave me a couple rocks that I placed around my tank. Although I'm currently fighting a valient battle with what I think is cyano.