So it’s sort of bubbling but not with any vigour, so to be on the safe side I’ve been out and bought 2 packets of W-34/70.
Mine is still lifeless. Unlike its stand-in. I've got 24 litres in a 30 litre Burco (never thought of using it for an FV until this week) and I lifted the lid and the krausen is nearly to the top.
I'm going to give it the weekend before decided whether I'm just going to dump it or use it as a starter mixture for the half pack of Verdant.