Grey cob-web looking stuff

stueng

New Fish
Jul 30, 2010
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#1
No fish in here yet; just a few bunches of HC Cuba and some other plants I dunno what they are. There is little vegetation atm; waiting for it to grow and to move house before buying any more

On a piece of drift wood some weird grey, cob-web looking stuff has started to attach. Additionally some small plants and also gravel have started to become covered in the stuff. I think its actually starting to kill one of the plants



There's an image of the drift wood. The grey stuff is what I am wondering about. But I should also mention that the little green "filings" werent there when the wood was first put in the tank; that seems to have grown on there. I dont mind the green stuff; but that grey stuff - what the heck is that