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Old 08-21-2008, 10:49 PM   #1
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Black Flourite Particle Size

Can anyone here describe the relative particle size difference between regular Black Flourite substrate, and the Black Sand Flourite?

And, are either or both suitable for not damaging catfish barbels?

Thanks!
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Old 08-21-2008, 11:08 PM   #2
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Originally Posted by mrdbdigital View Post
Can anyone here describe the relative particle size difference between regular Black Flourite substrate, and the Black Sand Flourite?

And, are either or both suitable for not damaging catfish barbels?

Thanks!
I've never used either, but just a few days ago I was in a pet store looking at substrates and took a good look at both of the fluorite options. The sand is, as you might guess, a very small size (1-2 mm I'd say). It's a very fine sand, seemingly a little finer than most pool filter sand or reef sand. Pretty close, both in color and in size, to Tahaitian Moon Sand (if you've ever seen that).

The (regular) fluorite is a bit larger, irregularly shaped. Pretty similar in average size to your typical gravels, maybe a tad smaller, but the size varies a lot and the individual particles are not necessarily round but sometimes more of an oblong shape.

As for using it with corys, I am sure either would work fine in terms physical damage to the corys barbels. That being said, I suspect corys would enjoy the sand much better, being as they could really "root around" in the sand when they are exploring, whereas with the regular fluorite they would likely be just on the surface.

In the end, I like them both. On one hand, the sand is really quite stunning looking in a tank. On the other, the regular fluorite is probably a bit more "natural" looking, since there are variations in both particle size and particle shape--something that is going to be a more accurate replica of natural freshwater environments in most cases.
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Old 08-22-2008, 09:59 PM   #3
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Thanks for the response, JohnPaul.

I've only seen the pictures of the flourites on websites, which have not shown a sizing scale for comparison purposes.

How about the intensity of the black color? The pictures on the website that I looked at seemed to indicate the sand sized was a darker black than the regular size. Any observation on the color?
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Old 08-22-2008, 10:10 PM   #4
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Heres the best info/pics/comparrison I've seen
Enjoy!!
http://www.plantedtank.net/forums/su...ns-w-pics.html
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Old 08-23-2008, 08:06 PM   #5
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You can also click here on the various fluorites here and get a sense of relative grain size and makeup.
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