Yucky live sand

[EmilyB]

Actually, I wanted to try and stir up the topic of black H2S0 in live sand, as I have never really experienced it before.

I have purchased tanks with some sand, that curiously had black on the bottom of a few rocks. That always went away with added circulation and filtration. Or maybe added life forms, I don't know.

In the past, when I have talked about transferring sand beds.......no way would I have have done this with a foul smelling rank sandbed.