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Black diamond blasting abrasive

Posted: Thu Jul 04, 2019 5:41 pm
by devkatie
This is the only thing I can find around here. We live in the boonies. The nearest big store is 2.5 hours away. Has anyone used it or knows if it would be safe for our plants? I know people use it in aquariums without problem.Image

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Re: Black diamond blasting abrasive

Posted: Thu Jul 04, 2019 6:56 pm
by optique
fill a container half that stuff half water shake well and test the water's TDS after. if it did not change its safe, if it changed a little poor the water out and do test a 2nd time with clean water to test if washing it will fix.

Re: Black diamond blasting abrasive

Posted: Thu Jul 04, 2019 7:05 pm
by optique
i got some coco chips off ebay one time took me a week of soaking/shaking daily to feel safe.

Re: Black diamond blasting abrasive

Posted: Thu Jul 04, 2019 8:54 pm
by nimbulan
I've seen people use this product before. I think it's safe but it's always a good idea to test it.

Re: Black diamond blasting abrasive

Posted: Fri Jul 05, 2019 4:51 am
by devkatie
Guess I should invest in a tester.
I'm not sure what to think about the product. After doing some research online it's slag left over from coal mining. Supposily it's inert but I don't know.

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Re: Black diamond blasting abrasive

Posted: Fri Jul 05, 2019 5:31 am
by twitcher
I would not use it. If you are going to test, you need to let the material soak in ro or distilled water for more than a few days before testing the water that the stuff has been soaking in. It can take time for a material to leach into the water. If using the tray method, it can accumulate that material over time.

Re: Black diamond blasting abrasive

Posted: Fri Jul 05, 2019 10:55 pm
by devkatie
Thanks for your comments. Right now I think I'm not going to risk it. I'll just stick with perlite and peat for now.

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Re: Black diamond blasting abrasive

Posted: Mon Oct 18, 2021 2:02 am
by Kapahulu
I know this is an old post. Ive been doing a bit of reading on this forum. But referring to the Black Diamond sand, it should be ok to use.
Ive have 5 aquariums that I raise Neocaridina shrimp, and I use Black diamond or Pool Filter sand for the substrate. Perfectly safe for shrimp, should be ok for plants.