12-02-2012, 01:33 PM
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I've never seen DW go black like that - is something growing on it, or just natural coloration?
I've had wood get 'moldy' in the tank, and it's hard to say. *some* DW blooms are natural, expected, and harmless - others can be deadly. *I* don't know how to tell them apart, so whenever I've seen my wood do weird things, I rip it out. . .
I get really paranoid about stuff, though - I'm notorious for it. So when I've had issues with wood I take the piece out, scrub it with a clean wire brush, spray it with peroxide, rinse it off, drop it into boiling water, and let it dry in the sun for a few days before putting it back in the tank. Never had anything come back after that, though I'm sure all of that isn't necessary - I'll do it every time JUST to keep the babies safe :)
You have a giant tank, though - how big IS that piece?
Trying to get a better look at the shot - aside from the darkness- it doesn't look like what I've typically seen from a 'bloom' which is kind of a mouldy, webby, look - are they little white specks? Do you think they could be eggs or something? Odd...