So...question.
Im setting up a SA cichlid tank, and I want a dark substrate.
Saw a post where this stuff was black...is it?
Do you think it will work with fish that are moving the substrate around all the time?
Our pH hardness and alk is all slightly above what I would describe neutral, and well buffered to its current point.
If I run this for a few h2o changes will the negative effects go away?
Thanks
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