hey,
on my bogwood i keep getting white fluff in the same places and yet when i do a water test nitrites and nitrates are 0 and 10 and everything is fine,
Its a pretty nasty fungus. I had it also. It ended up creeping into the gravel. Once there i guess it just died and that made the water parameters all out of whack. I took the wood out and it took about 2 months of weekly vacuuming to get the crap out of the gravel. I suggest you remove it ASAP.
well seeing that my Mum, Dad and brother are out for the day and can take it out and put a lump of granite in and make as much mess as i can
i look forward to these days.
I might post a pic on here later of my two tanks