Hello Bernd,
In my garden water container was two weeks ago no little living food. (That garden is 14 km from here 😉 ).
And my two buckets on the balcony are also till now not living. …
And also the nettles still don’t grow here.
I don’t know where to look after living food elsewhere in the aroundings here ….there is a public water in the parc but there are lots of Kois and small gold fish, I’m not sure if I can trust the water …