For those who are using Tahitian sand. How many pounds of it do I need to properly fill up a 85 gallon tank (62"long, 16" wide)? I want it to be atleast 2" tall. I've used pool filter and playground sand in the past and I'm not sure if Tahitian sand weighs different. I'd have to order online, so I want to make sure I order the right amount.
Any Bay Area folks know of any local places that sell Tahitian sand?