Hi Roy,
The Blue see near Bitterfeld Wolfen and Dübener Heide?
2 Weeks seems a longtime for a smallish water but there are lots of other places near.
Including the Elbe and the Weise Elbe for cats and river carp.
Most Importantly do you have a German fishing licence (2000 euros and all your kit if not).
There is a way around it if you have a English rod licence, but I will have to look that up for you, perhaps tommorow.
I will do a bit of homework and get back to you, its my neck of the woods.
Gerry.