29 gallon biocube

Okay I have 29 gallon biocube sitting at home. And i have a question about how much sand I need. Apperently I have 20 pounds of live sand and 20 lb of dry sand, so 40lb total. And now my question is..
Someone from 3reef told me I need 2lb per 1 gallon which is 60lb?
Some says 40lb is good
the guy at fishshop says 40lb is too much.

Who is right?

 

i have a 50 gallon tank and i put 40 pounds in my tank it all depends on how thick of a layer u want here in a link to a formula sit that figures out how many pounds u need for how many inches
http://www.cichlid-forum.com/articles/calculator.php
its at the end of the page i think 1to2inces is perfect

 

thanks newreef. Still would like to hear what others think

 

If your going for a Deep Sand Bed for filtration 4" to 6" deep seems to be the standard. Half and half should be great.

See section: Getting to the Bottom of Things

Reefkeeping 101 - Natural Filtration - Part 2 by Tom Murphy (aka WaterKeeper) - Reefkeeping.com

 

i think my sand is between 2 and 3 inches..is that okay

 

perfect