Algae ID?

[jmustapha]

Hey guys. Does anyone know what this stuff is? I'm new to hobby only 2 months in and have this stuff growing on the underside of rocks everywhere

Thanks

 

[Spyderturbo007]

They look like white Foraminiferans, but I can't be 100% sure from the picture. If they are, you're in good shape because they are actually protozoans as opposed to algae.

 

[cloak]

I'm not 100% sure either on the ID, but this article did come to mind first.

http://reefkeeping.com/issues/2003-10/rs/

HTH.

 

[jmustapha]

Bump

 

[Spyderturbo007]

Um, we didn't answer your questions? Did you do a search on Foraminiferans and compare it to what is in your tank?

 

[devimik]

I have those all over my tank - I thought they were hydroids.

 

[Spyderturbo007]

Nope, they aren't hydroids. These are Hydroids.

 

[devimik]

Nope, they aren't hydroids. These are Hydroids.

Well, there are many, many types of hydroids and some do look similar to the OP's pic. Could be Bryozoans or Forams too - would need a better pic. See here: http://www.chucksaddiction.com/hitchodds.html