How many pounds of sand do I need to get a 2" bed in a 125 gallon tank?

Just as the title says, how many pounds of sand do I need to get a 2" bed in a 125 gallon tank? I want about 2" is all for my 125. Is there a certain formula or guideline to determine x amount of inches per gallon or anything??

P.S. I'm getting sand from marcorocks.com, they any good??

Thanks!

 

There's a sandbed calculator in the action panel.

 

Welcome to 3reef!

Don't know about sand from marco but you'll need 1.5 lbs per gallon to get a 2" deep bed. So roughly 250 lbs of sand. Hope this helps a little

 

3reef.com - Forums for coral reef aquariums, salt water fish, corals, inverts, protein skimmers, aquarium lighting and more - Calculators

use the sand bed depth = 123.42

I use both MarcoRock and sand in my tank, check the links in my sig

 

The tank is 72x22x18 roughly.. One says 1# per gallon, other says 1.5# per gallon, which is it? Majority rules I guess, anyone else? ha ha.

I do appreciate such fast relies though!!! Thank you very much all!

And I had no idea about those calculators thanks very much for letting me know!

 

the calculators are accurate, and the 1# per gallon comes within a pound of the calc

 

i used 120 pounds in my 125 it worked good for me it wasnt 2 inches thought about 1.25in of sand. so 150-160 pounds should do you good.