Daphnia seem to be in short supply,
but one of my bathtubs seems to have heaps.
Will drop some off to you one day Barrie, Yet to get round to your place, petrol sooooo expensive.
I find it difficult to feed my GBA courgettes, since it cost nearly $9 per kg.
and my GBA eat one courgette a day. have moved to cucumbers at the moment.
I'm looking for food that is either free or cost next to nix to grow.
Brocolli Stalks is a good one... must try that.