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Abrasive Blasting Crystals

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5.1K views 13 replies 11 participants last post by  ntvinh986  
#1 ·
Would this be safe to use as a substrate? I picked it up at Menard's for around $8.00/50lbs. Or should I return it and pick up something else?

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#2 ·
Considering its "hard and sharp" and its for abrasive blasting, I know that it would be a poor choice for any sand-sifting species such as Geophagus or some Africans or bottom dwellers such as plecos. It would end up cutting the fish.
 
#4 ·
I was sort of figuring it wouldn't be too healthy for Mbuna, but I wanted to ask just in case I was wrong... as I'm wrong a lot... at least that's what my wife says. :lol:

I took the stuff back to Menard's and exchanged it for Granusil Silica Sand... I've been using it in another tank without issues.

Now I just need to build up enough motivation to pull the rocks, scoop out the gravel, and wash the sand. Oye...
 
#7 ·
If you go to the company's web site they should have a "material safety data sheet" (MSDS). I know products like Black Beauty are made from Hornblende and are not toxic.
 
#8 ·
Black beauty is what my friend was calling it, just trying to figure out if what they use is some generic version that they just call black beauty and it really isnt. Ill have to find out from his supplier. Thanks
 
#13 ·
I have it in my tank and no problems. I had the same concerns but the fish don't seem to mind. A LFS here has used it for years and had no problems. I ended up buying mine from the LFS because I didn’t want 100lbs which was the smallest bag I could find locally.

When rinsing the sand discard all the floating particles. It took about 30 rinses per 5 pounds.

I vacuum the substrate weekly and don’t have a problem. the blasting slag goes about ½ way up then I remove the vacum from the the slag and let it settle back down. I have coral substrate for a base and added the black blasting slag on top for the look. You can also stir the blasting slag and then vacuum the water. The blasting slag settles within seconds.