Saf t Sorb vs BDBS
I'm setting up a 25 gallon 18" cube. I'm doing a scape with 2 pieces of mopani root wood in the back kind of standing up against the back glass to help form a mound. There will be some steep areas of substrate around the drift wood, and some pockets of substrate in the pockets and voids in and between the wood. I have black corrugated plastic (whatever that sign board stuff is called), black mesh and lava rocks to help build up and retain. I've started putting in some BDBS but now I'm second guessing the color and think I might want to use something more natural. My issue is the hills and pockets.
Will Saf T Sorb be a lot harder to keep in place than BDBS?
Are both or either recommended with corys?
Are they suitable for growing DHG?