I've got an algae problem in my pond and I'm having hassles finding a cheap source of barley straw in Sydney. Bunnings sell 100
gram packs for around $20, but that is an outrageous ripoff. I can't see why it shouldn't cost the same as sugar cane, common
straw or lucerne. The few remaining nurseries around here don't stock barley straw. Any ideas where I might get a bale of it?

Thanks.