How much sand would this be?

[d2mini]

I need some sand for my fuge and not sure how much i need.
The space i have is 8"x7" and I want to go about 6" deep.
Any idea approx. how many lbs of sand that is???

 

[ccCapt]

You will need approximately 18 pounds of sand to achieve a 6 inch depth in a 8 x 7 inch tank assuming the sand weighs 90 pounds per cubic foot.

Reef Central Sandbed Calculator​

 

[Oscarsdad608]

Sound like a good answer ccCapt.

 

[d2mini]

Awesome, thanks!

Now the next question... i don't want to disturb my tank and create a cycle.
Do i need to get sand from someone else's tank?
What about the packaged stuff?
I sure don't have enough in my display to move down.

 

[Oscarsdad608]

Get a bag of sand and rinse it really well.
With that much sand in such a small space will you have room for cheato?

 

[d2mini]

Get a bag of sand and rinse it really well.
With that much sand in such a small space will you have room for cheato?

My sump is 18" high and forget how tall the divider is but yeah, i measured and it shouldn't be a problem.

 

[daugherty]

do not buy the bagged live sand just get a bag of olite sand and clean and put it on in