How Much Sand Do I Need?

[olsenjb]

I want to set up a 20 gallon reef with a DSB. I was wondering how many pounds of the sugar sized sand would I need to make my DSB 4-5" deep? Is there some equation to figure this out? Thanks.

 

[jonthefb]

i know there is olsen, and it was posted here a couple weeks ago. i was wondering the same thing. Does anyone have the equation to figure out how many pounds of sand are needed?
thanks in advance
jon

 

[hondo]

I asked this a couple of months ago and was told the following.
L" X W" X desired sand bed depth in " X .0579 = lbs of sand needed.