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What are some opinions on using black diamond blasting sand as a planted tank substrate?
I use black beauty. We use it at work for sandblasting concrete joints in the road. I get it for free. It’s actually coal slag that is completely inert. My eels love it and my plants are growing quite nicely in it.
I was told it works but the sand granules are very sharp and can be bad for a lot of fish so I opted against it.
160lbs of BDBS 20/40, goldfish sift through it all day no issues, soon to be planted.
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