Fungus on driftwood

[Trilobite]

I found some old driftwood that had been sitting in a bucket of water for about a year. I took iot out and it was covered in small, flat round grey slimy patches and also black stalks with slimy round tops like this very well drawn picture I made. (The big brown block is the wood)

Only the submerged part had this fungus so I assume it needs water to survive. I boiled it in water and scraped most of it off.

Will it be ok to put in my fish tank?

[zeebee]

Interesting, I have a small amount of white fungus growing on my driftwood in my tank. Doesnt seem to affect the fish