I have heard that with "fake rock" water features that are sold here (New
Zealand) they recommend if you want an aged, weathered look to brush it with
plain Yoghurt, it promotes the algae growth.....


wrote in message
...
Yep I'd like to grow some Algae on the new patch work of my concrete pond
to help hide the differences in color between the new and old concrete
Any ideas on how to speed up the process would be helpful



TerryinTexas






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