Red/Pink Coralline Algae

[Clowny]

Does anything eat this? what causes this? here is a web link with a picture of a growth on the glass http://saltaquarium.about.com/od/algaephotosclassificati/ig/Coralline-Algae-Photo-Gallery/Pink-Purple-Coralline-Algae.htm
Itd be great to get something that'll eat it. I was told star fish, help prevent this growth but was told they do not eat algae.

[Deux ex Machina]

My tuxedo urchin appears to eat it

[Clowny]

Hi thanks for replying so fast I will have to find one in Regina, dont think Pat had any in at the moment. Will have to find a nice Blue one

[Myka]

Most urchins eat coralline algae as well as other algae, but they have a big appetite and probably won't do well in your 30 gallon tank. I also find they spend more time on the rocks than the glass. Coralline is expected in a healthy reef, there isn't really a "cause" other than the tank is maturing. It is pretty much a given, and makes a good competitor to nuisance algae.

[Prauphitter]

I agree with myka. Purple is much better than green.

[Deux ex Machina]

I've had one in my 30 gal for over two years and it's doing very well. I wouldn't have more than one in a small tank. My urchin spends most it's time on the glass.

[Myka]

I've had one in my 30 gal for over two years and it's doing very well.

Depends how clean your tank is. There very well could be lots of food for an urchin in a 30 gallon tank, but in pristine conditions that wouldn't be possible.