Share 'Should top layer of expanded shale be damp?'
This is my first post... Yesterday I completed the pluming and I'm finally ready to start cycling my first system. I'm using expanded shale in two 50 gallon rubber made stock tanks with a 100 gallon stock tank for the fish. I'm using expanded shale for the grow medium.
I know I should set the siphons to leave about an inch of dry medium. However after running through the night the top…
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