Sadfield
Landlord.
Firstly I'd advise not putting anything into Secondary fermentation when fault finding as it just adds another element of risk, variable to consider. A beer will be fine in primary for weeks.
Silly question, but did you dry hop with pellets? If not I'd be inclined to view anything green floating on top, as mould. In your original post, you mentioned cleaning with water only, so it might be a good idea to describe your cleaning/sanitation regime and the area where you ferment your beer.
Silly question, but did you dry hop with pellets? If not I'd be inclined to view anything green floating on top, as mould. In your original post, you mentioned cleaning with water only, so it might be a good idea to describe your cleaning/sanitation regime and the area where you ferment your beer.