What's the Difference?

[sandy]

The only fine grain substrat my LFS sells is by natures ocean and it is Crushed Coral... but it is sand... Made by Nature's Ocean lol.
Is there a difference between aragonite and crushed coral sand? (not the bio-activated stuff)I'm confused. <img src="graemlins//confused.gif" border="0" alt="[confused]" />

 

[steamboat1569]

Argonite will help maintain calcium levels in a tank where Crushed Coral will not, no matter how fine.
I went to the natures ocean website, and the finest grain they have in the CC is 2 to 4 millimeters in size. That's equivelent to 1/16 to 1/8 of an inch.
It is best to get a smaller size that this, to be actual sand. The smaller the grain size the more surface area is exposed, thus, better denitrification.
Hope this helps.

 

[sandy]

hmmm the grain of this stuff (although I've tossed the bags away) is more fine than the Nature's Ocean bio-activated sand. (calling lfs for details...)
okay -- Crushed Coral Sand made by Nature's Ocean.. no grain size on the bag.

 

[steamboat1569]

Nature's ocean has many different kinds of stuff. crused shell, gravel in many sizes. Their Live argonite is .05 to 1.7 mm in size. Here is their website link.
<a href="http://www.naturesocean.com" target="_blank">www.naturesocean.com</a>

 

[sandy]

Thanks. Don't see it there. hmmmm o-well, it is fine stuff.. not aragonite guess I'll use it (since there is already 20lbs of it in my 50 gal along with 80lbs Nature's Ocean Bio-Activated Sand).