What in the world is this?

[JohnniG]

Hi guys! I started my discus tank 6 days ago. Now the wood, which i cleansed in hot water and scrubbed, look like this:

86915
86916
86917

Im a newcomer, but I guess thats not a good sign?

[Second Hand Pat]

It's ugly but harmless. When you do your WCs use your hose to suck it off the wood.
Pat

[Solid]

That is completely normal. It happens often when you put new driftwood in a tank. Shouldn't cause a problem. Like Pat said you can manually remove it and it usually never grows back. If you have ottos, plecos, shrimp or other critters they will clean it off for you.

[JohnniG]

Thanks guys! I got worried for a sec ;)

[rickztahone]

Otos love that stuff!

[zergling]

Normal, to be expected with wood used in an aquarium for the first time. According to experienced planted tank folks, it's probably some sort of harmless fungus.

In my experience it goes away on its own eventually, usually in a week or two.