Naturalistic enclosures

[B_Aller]

Hello all,
I'm wondering if anyone on this forum is keeping locality specific rosy's in naturalistic enclosures?
Or if anyone has habitat photos of rosy's in the San Diego area?
I've been given a male rosy that was (supposedly) collected in the S.D area and will be building a naturalistic enclosure for it in the next few months, I have tons of rosy habitat pics from the Mojave and wouldn't mind doing a Mojave style rosy set up but I know you rosy guys are crazy about locality specifics!
here's a rosy from the Mojave I found last year with some habitat in the background ( sorry for the crappy pic)
Also wondering what the consensus here is on the substrate used for naturalistic exhibits for rosy's I was going to go with topsoil sand mix (heavy on the sand)at about 12" depth. Thoughts?
Thanks.
Ben