2.10 Live Sand
Description
This article is from the ReefKeepers FAQ, by several authors (see the Credits section).
2.10 Live Sand
Of relatively recent interest in the hobby is the use of "live sand".
Live sand consist of small grain (0.5mm-1.0mm) coral sand that is
populated with crustations and bacteria. It is normally used at a
rate of 10lbs per square foot of bottom area - which yields about a
1" deep covering. Variations from 1/8" to 3"s of covering have been
reported.
If you decide to have a live sand substrate bottom, you should
include several creatures that will turn-over, or otherwise, move
the sand around. Recommendations include: Sea Cucumbers, Brittle
Starfish, Serpant Starfish, Golden Headed Sleeper Gobies, Yellow
Jawfish, Watchman Gobies, and other detrivoirs. A mix of the above
is recommended, since each creature moves the sand around differently.
Live sand has a reputation of eliminating the final traces of nitrates
in otherwise well run tanks. It also provides an environment for
additional bio-diversity in the tank. Additionally, some feel that
the chemical balance and stability of a tank's water is improved when
live sand is present.
* Note that live sand usage should still be considered experimental.
* Usage is dependant upon have the sand sifted and otherwise moved
* around to prevent detritus from accumulating. Many people have reported
* problems keeping their turn-over creatures alive for long periods
* of time. Some have not seen the reported nitrate reductions. Keep
* in mind that many reef tanks have operated for years without a substrate
* and have no detectable nitrate concentrations.
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