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Discussion Starter · #1 ·
Does Sand Blasting Stone come in black or dark gray? I've use number 1 and 3
size sand blasting stones , can get a 50lb bag for like $20. I had good luck with laying a layer of Latrite and capping it with a mix of both sands and grew everything ounce it aged .
 

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A pretty common substrate is the coal slag blasting grit. usually something like 'black diamond', 'black beauty', 'black blast' or whatever. seems to work pretty well if you can find it at a supplier near you.

I don't know the grit sizes off hand, but I'm sure folks will drop in and let you know what works for them.
 

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Check this out. http://www.dawson-macdonald.com/contact-information.html :smile:

Otherwise, Google sandblasting supply and look in your local yellowpages results as well. Make a few calls and I'm sure you can find what you are looking for.

I use Black Beauty blasting grit thanks to recommendations from here. It is primarily black with some green mixed in.

-Zach
 

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Discussion Starter · #8 ·
Tractor Supply, and 20-40 is the correct grit. Black Diamond is the brand. $7.99 for 50lbs. Lots of folks here use it (myself included).
I have a local store and was looking at there web site, How is there size compared to Eco Compleat ? Does it holds the plants down alright? Do you have a pic of your tank sub.?
 

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Discussion Starter · #10 ·

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I rinsed it very briefly. That shouldn't make a difference one way or the other though. I could have just dumped it in and let the dust settle. There wasn't that much of it.
 
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