That is a good test to do to see if it is blood. I dont get them in the bath any more but I guess I could pick any specks I find on my feet.
I am on my second week of another ICU protocol. The first week I had 'runners' all on my feet. Nothing the last couple of days.
I hope this one does it. I am waiting to here from Entomologists in the UK on the samples I sent. I dont hold out much hope, but there's a chance of an ID.