On Fri, 16 Sep 2016 10:25:44 +0100, Muddymike wrote:

I have a plastic dustbin in use as a water butt one side of my
greenhouse. I lift the lid and dunk the watering can to fill it.

I often find slugs around the inside of the bin rim and knock them into
the water. They always sink towards the bottom but more appear quite
regularly, hence my question.

Mike

ICBW, but that's what I thought they were, but given that they go down to
follow the water level as I take out water, I assumed that they're leeches.
I couldn't resist 'stroking' one - there didn't seem to be slime (although
my hands were wet at the time).
--
Peter.
The gods will stay away
whilst religions hold sway