I have a belgium wit in the fermenter which started at OG of 1052 and after 10 days ferment is only down to 1023, it is still bubbling away and has a good yeast coverage on top. It is brewing at 20C. I'm using White Lab 400 Beligium Wit yeast. Is this normal? I was concerned that the wort wasn't airrated enough, but the same airration method has worked fine for brew with a lot higher OGs. Never done a wit before and my AG experience is very limited. Used a healthy 1 litre starter.