looking for black substrate with smooth grains - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 10-15-2018, 03:24 PM Thread Starter
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looking for black substrate with smooth grains

Hello folks,

I have a small shrimp tank that currently has pool filter sand in it. I just want to cap it for the nice black look. I'm looking for a black (or very dark) substrate that:
Is smooth and not jagged (rules out Flourite and the typical black sands at the aquarium stores)
inert, or only very mild buffering
doesn't leech out stuff
don't need all the microbial features, but I guess I can rinse it off anyway
won't break down
size 1-3 mm approx

For example, even my pool sand has these little black elliptical grains of about 1-2mm which would be fine.
I also saw on Amazon some black ceramic beads of ~2mm diameter.
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post #2 of 5 (permalink) Old 10-15-2018, 10:03 PM
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Got friends in Hawaii? https://www.explore-the-big-island.c...and-beach.html

Or Iceland?
Black sand desert, south of Iceland - YouTube

https://www.stonecontact.com/product...t-black-sand-1

Last edited by Darkblade48; 10-16-2018 at 11:50 PM. Reason: Please use the edit function for back to back posts to keep threads cleaner
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post #3 of 5 (permalink) Old 10-15-2018, 10:45 PM
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You could try one of the smaller grain sizes of Black Diamond blasting sand. You can find it at Tractor Supply Co. I've heard a lot of positive things about it and it's really cheap. Just make sure you rinse it first 😊
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post #4 of 5 (permalink) Old 10-15-2018, 10:47 PM
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I would use Flourite Black SAND but grain size is under 1 mm so that would disqualify it for what you want, but may I ask you why? Just curious and I have a feeling I may learn something about shrimp.
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post #5 of 5 (permalink) Old 10-16-2018, 06:54 AM Thread Starter
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Quote:
Originally Posted by IneedAbiggerTank View Post
I would use Flourite Black SAND but grain size is under 1 mm so that would disqualify it for what you want, but may I ask you why? Just curious and I have a feeling I may learn something about shrimp.
Mainly I wanted to try the "black substrate" look, but I would need grains >2mm so they don't fall between my pool sand grains. Plus I kind of like the rounded grain look, instead of the jagged or flaky grains in many of the black substrates.
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