how much sand?

[footballdude2k3]

i am upgrading to my 40b this weekend, i want less than an inch of sand, how many pounds of argonite do i need?

 

[thegrun]

Tank Length x Width x Thickness wanted/20= Lbs

 

[jet fixer]

I find this helpful:
http://www.reefcentral.com/index.php/sand-bed-calculator

 

[footballdude2k3]

very helpful, thank you gents

 

[wantacookie]

40lbs of caribsea seaflor special reef grade made about an inch in my breeder.