White Fuzz on coraline?
 

Well let me start by giving tank params 75g aga bare bottom with cutting board, 30g breeger sump. 2500g flow per hr, ph-8.1 cal-388 alk-1.9. Mixed sps and softies. Ok so in the past week or so I have seen this white fuzzy stuff growing from the coraline on the bottom of the tank and a little on the over flow. Most of the back glass is covered with coraline and has none of this stuff on it. Now I can rub this stuff off but in less then a day its back. Sorta looks like mold fuzz you see on food. I do not over feed and do a 10 gal water change weekly. This tank has been up and running for a little over a year now.

Anyone have any idea what this fuzzy stuff is?:confused:

NO ONE HAS ANY IDEA?

It could be sponge decay or simply die off, is the live rock new?

pics?

Its not on the rocks..only on the coraline on the front bottom and the overflow. I heve coralin all over the tank, rocks ect but this stuff only seems to be on the plastic and the starboard. here is a pic...


http://img.photobucket.com/albums/v710/scead/alg.jpg