Crystals on glass

[skull69]

Hello I have a question for someone out there. Here it is I've been having crystals form on the glass in formations all over the glass not on my fish. Can anyone let me know what they are and should I be worried???:help:

 

[romeofoeve]

its hard to tell without a pic, however the closest thing i can think of is probably corraline algae, look it up under hitchhiker forums. does it grow in a circular form?

 

[skull69]

Yes they are circular and in a line to. I cleaned the glass tonight so I can't do a pic yet they will come back. There somewhat white and clear the size of a BB only on the glass.

 

[romeofoeve]

might also be flatworms, look in the hitchhiker id sorum in the newbie section.

 

[skull69]

Will I looked at all of the hitchhiker id sorum they were not there. when I cleaned the glass they stuck to my mag float it was soft stuff I scraped it out with my finger nail it did stay whole.

 

[salty cheese]

Maybe a Spirorbidae worm. If so a harmless filter feeder.