Keep cleaning your glass and siphon off what you can with airline tubing. In
about 2 weeks, the bloom is over. It looks like two different things to me... a
diatom bloom and a small section of cyano bacteria.

This is common in a newer tank, and while ugly, it isn't a permanent problem.

Marc


QT wrote:

Hi, I have a 1 1/2 month old 60gal tank w/ about 30-35 lbs of live
rock and 60 lbs of aragonite sand. A few weeks ago, I've had a bad
problem with this purple/reddish fast growing stuff on my sand and
glass! It is now beginning to slowly appear on some rocks. I sifted
the sand manually and some of it has now turned brown... Areas covered
from the light by rocks, etc are still white sand. It looks sorta
slimy and hairy. What is this stuff? How can I get rid of it?

Thanks!
I have a few pictures:
http://www.bunniestation.com/photos/algae1.JPG
http://www.bunniestation.com/photos/algae2.jpg
http://www.bunniestation.com/photos/algae3.jpg

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