Hi Dom
Dirt is the best for savannahs bar none. Cypress is not as good but still works if you make adjustments for what the cypress is lacking. Cypress lacks the ability to hold borrows, etc. Until I can put more troughs in my space (5 more months) I'll have to make the best of what I have
The troughs are 6-7 feet long and work really well. I'm switching over to them exclusivly for the reasons listed here (as soon as space permits):
<ol>
<li>They hold dirt very well
<li>They hold heat very well
<li>They hold moisture very well (with a proper lid)
<li>Are resistant to moisture
<li>Make for easy access
<li>Make for easy viewing
<li>Holds food items inside
</ol>
As Always
--Ravi--