Growth On Wood?

[SteM]

Recently added this piece of wood to the aquarium, can anyone tell me what this is on it and if I should be worried? Or what to do about it?

 

[Aquascaper]

Fungus using up leaching nutrients from the wood, will go once the nutrients are used up.

 

[SteM]

This is obviously a common thing and nothing to worry about?

 

[fluttermoth]

Yep, very common, and no, nothing to worry about

 

[SteM]

Thanks guys