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Black sand selection for nano tank


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Hi guy,

Have anyone using either one of the below 4 types of black sand before?

CaribSea Arag-Alive™ Indo-Pacific Black

CaribSea Arag-Alive™ Hawaiian Black

CaribSea Ocean-Direct™ Pacific Black

CaribSea Super Naturals- Tahitian Moon

Which one is blacker and better in bring out the contrast of the coral colour?

How many lb of sand do I need to fill up 1~1.5" of 1.5ft cube?

post-1182-049500100201281969137_thumb.gi

Knowing is not enough; we must apply. Willing is not enough; we must do. - Goethe

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